221531640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 256

約数和(自身を含む): 780019200

約数和(自身を除く): 558487560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 73, 76, 88, 95, 110, 114, 120, 121, 132, 146, 152, 165, 190, 209, 219, 220, 228, 242, 264, 285, 292, 330, 363, 365, 380, 418, 438, 440, 456, 484, 570, 584, 605, 627, 660, 726, 730, 760, 803, 836, 876, 968, 1045, 1095, 1140, 1210, 1254, 1320, 1331, 1387, 1452, 1460, 1606, 1672, 1752, 1815, 2090, 2190, 2280, 2299, 2409, 2420, 2508, 2662, 2774, 2904, 2920, 3135, 3212, 3630, 3993, 4015, 4161, 4180, 4380, 4598, 4818, 4840, 5016, 5324, 5548, 6270, 6424, 6655, 6897, 6935, 7260, 7986, 8030, 8322, 8360, 8760, 8833, 9196, 9636, 10648, 11096, 11495, 12045, 12540, 13310, 13794, 13870, 14520, 15257, 15972, 16060, 16644, 17666, 18392, 19272, 19965, 20805, 22990, 24090, 25080, 25289, 26499, 26620, 27588, 27740, 30514, 31944, 32120, 33288, 34485, 35332, 39930, 41610, 44165, 45771, 45980, 48180, 50578, 52998, 53240, 55176, 55480, 61028, 68970, 70664, 75867, 76285, 79860, 83220, 88330, 91542, 91960, 96360, 97163, 101156, 105996, 122056, 126445, 132495, 137940, 151734, 152570, 159720, 166440, 167827, 176660, 183084, 194326, 202312, 211992, 228855, 252890, 264990, 275880, 291489, 303468, 305140, 335654, 353320, 366168, 379335, 388652, 457710, 485815, 503481, 505780, 529980, 582978, 606936, 610280, 671308, 758670, 777304, 839135, 915420, 971630, 1006962, 1011560, 1059960, 1165956, 1342616, 1457445, 1517340, 1678270, 1830840, 1846097, 1943260, 2013924, 2331912, 2517405, 2914890, 3034680, 3356540, 3692194, 3886520, 4027848, 5034810, 5538291, 5829780, 6713080, 7384388, 9230485, 10069620, 11076582, 11659560, 14768776, 18460970, 20139240, 22153164, 27691455, 36921940, 44306328, 55382910, 73843880, 110765820, 221531640]

約数ペア:

[(1, 221531640), (2, 110765820), (3, 73843880), (4, 55382910), (5, 44306328), (6, 36921940), (8, 27691455), (10, 22153164), (11, 20139240), (12, 18460970), (15, 14768776), (19, 11659560), (20, 11076582), (22, 10069620), (24, 9230485), (30, 7384388), (33, 6713080), (38, 5829780), (40, 5538291), (44, 5034810), (55, 4027848), (57, 3886520), (60, 3692194), (66, 3356540), (73, 3034680), (76, 2914890), (88, 2517405), (95, 2331912), (110, 2013924), (114, 1943260), (120, 1846097), (121, 1830840), (132, 1678270), (146, 1517340), (152, 1457445), (165, 1342616), (190, 1165956), (209, 1059960), (219, 1011560), (220, 1006962), (228, 971630), (242, 915420), (264, 839135), (285, 777304), (292, 758670), (330, 671308), (363, 610280), (365, 606936), (380, 582978), (418, 529980), (438, 505780), (440, 503481), (456, 485815), (484, 457710), (570, 388652), (584, 379335), (605, 366168), (627, 353320), (660, 335654), (726, 305140), (730, 303468), (760, 291489), (803, 275880), (836, 264990), (876, 252890), (968, 228855), (1045, 211992), (1095, 202312), (1140, 194326), (1210, 183084), (1254, 176660), (1320, 167827), (1331, 166440), (1387, 159720), (1452, 152570), (1460, 151734), (1606, 137940), (1672, 132495), (1752, 126445), (1815, 122056), (2090, 105996), (2190, 101156), (2280, 97163), (2299, 96360), (2409, 91960), (2420, 91542), (2508, 88330), (2662, 83220), (2774, 79860), (2904, 76285), (2920, 75867), (3135, 70664), (3212, 68970), (3630, 61028), (3993, 55480), (4015, 55176), (4161, 53240), (4180, 52998), (4380, 50578), (4598, 48180), (4818, 45980), (4840, 45771), (5016, 44165), (5324, 41610), (5548, 39930), (6270, 35332), (6424, 34485), (6655, 33288), (6897, 32120), (6935, 31944), (7260, 30514), (7986, 27740), (8030, 27588), (8322, 26620), (8360, 26499), (8760, 25289), (8833, 25080), (9196, 24090), (9636, 22990), (10648, 20805), (11096, 19965), (11495, 19272), (12045, 18392), (12540, 17666), (13310, 16644), (13794, 16060), (13870, 15972), (14520, 15257)]