28149240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 256

約数和(自身を含む): 106168320

約数和(自身を除く): 78019080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 31, 35, 40, 42, 46, 47, 56, 60, 62, 69, 70, 84, 92, 93, 94, 105, 115, 120, 124, 138, 140, 141, 155, 161, 168, 184, 186, 188, 210, 217, 230, 235, 248, 276, 280, 282, 310, 322, 329, 345, 372, 376, 420, 434, 460, 465, 470, 483, 552, 564, 620, 644, 651, 658, 690, 705, 713, 744, 805, 840, 868, 920, 930, 940, 966, 987, 1081, 1085, 1128, 1240, 1288, 1302, 1316, 1380, 1410, 1426, 1457, 1610, 1645, 1736, 1860, 1880, 1932, 1974, 2139, 2162, 2170, 2415, 2604, 2632, 2760, 2820, 2852, 2914, 3220, 3243, 3255, 3290, 3565, 3720, 3864, 3948, 4278, 4324, 4340, 4371, 4830, 4935, 4991, 5208, 5405, 5640, 5704, 5828, 6440, 6486, 6510, 6580, 7130, 7285, 7567, 7896, 8556, 8648, 8680, 8742, 9660, 9870, 9982, 10199, 10695, 10810, 11656, 12972, 13020, 13160, 14260, 14570, 14973, 15134, 16215, 17112, 17484, 19320, 19740, 19964, 20398, 21390, 21620, 21855, 22701, 24955, 25944, 26040, 28520, 29140, 29946, 30268, 30597, 32430, 33511, 34968, 37835, 39480, 39928, 40796, 42780, 43240, 43710, 45402, 49910, 50995, 58280, 59892, 60536, 61194, 64860, 67022, 74865, 75670, 81592, 85560, 87420, 90804, 99820, 100533, 101990, 113505, 119784, 122388, 129720, 134044, 149730, 151340, 152985, 167555, 174840, 181608, 199640, 201066, 203980, 227010, 234577, 244776, 268088, 299460, 302680, 305970, 335110, 402132, 407960, 454020, 469154, 502665, 598920, 611940, 670220, 703731, 804264, 908040, 938308, 1005330, 1172885, 1223880, 1340440, 1407462, 1876616, 2010660, 2345770, 2814924, 3518655, 4021320, 4691540, 5629848, 7037310, 9383080, 14074620, 28149240]

約数ペア:

[(1, 28149240), (2, 14074620), (3, 9383080), (4, 7037310), (5, 5629848), (6, 4691540), (7, 4021320), (8, 3518655), (10, 2814924), (12, 2345770), (14, 2010660), (15, 1876616), (20, 1407462), (21, 1340440), (23, 1223880), (24, 1172885), (28, 1005330), (30, 938308), (31, 908040), (35, 804264), (40, 703731), (42, 670220), (46, 611940), (47, 598920), (56, 502665), (60, 469154), (62, 454020), (69, 407960), (70, 402132), (84, 335110), (92, 305970), (93, 302680), (94, 299460), (105, 268088), (115, 244776), (120, 234577), (124, 227010), (138, 203980), (140, 201066), (141, 199640), (155, 181608), (161, 174840), (168, 167555), (184, 152985), (186, 151340), (188, 149730), (210, 134044), (217, 129720), (230, 122388), (235, 119784), (248, 113505), (276, 101990), (280, 100533), (282, 99820), (310, 90804), (322, 87420), (329, 85560), (345, 81592), (372, 75670), (376, 74865), (420, 67022), (434, 64860), (460, 61194), (465, 60536), (470, 59892), (483, 58280), (552, 50995), (564, 49910), (620, 45402), (644, 43710), (651, 43240), (658, 42780), (690, 40796), (705, 39928), (713, 39480), (744, 37835), (805, 34968), (840, 33511), (868, 32430), (920, 30597), (930, 30268), (940, 29946), (966, 29140), (987, 28520), (1081, 26040), (1085, 25944), (1128, 24955), (1240, 22701), (1288, 21855), (1302, 21620), (1316, 21390), (1380, 20398), (1410, 19964), (1426, 19740), (1457, 19320), (1610, 17484), (1645, 17112), (1736, 16215), (1860, 15134), (1880, 14973), (1932, 14570), (1974, 14260), (2139, 13160), (2162, 13020), (2170, 12972), (2415, 11656), (2604, 10810), (2632, 10695), (2760, 10199), (2820, 9982), (2852, 9870), (2914, 9660), (3220, 8742), (3243, 8680), (3255, 8648), (3290, 8556), (3565, 7896), (3720, 7567), (3864, 7285), (3948, 7130), (4278, 6580), (4324, 6510), (4340, 6486), (4371, 6440), (4830, 5828), (4935, 5704), (4991, 5640), (5208, 5405)]