81430580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:91

約数の個数: 192

約数和(自身を含む): 236113920

約数和(自身を除く): 154683340

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 23, 28, 35, 38, 44, 46, 55, 70, 76, 77, 92, 95, 110, 115, 121, 133, 140, 154, 161, 190, 209, 220, 230, 242, 253, 266, 308, 322, 380, 385, 418, 437, 460, 484, 506, 532, 605, 644, 665, 770, 805, 836, 847, 874, 1012, 1045, 1210, 1265, 1330, 1331, 1463, 1540, 1610, 1694, 1748, 1771, 2090, 2185, 2299, 2420, 2530, 2660, 2662, 2783, 2926, 3059, 3220, 3388, 3542, 4180, 4235, 4370, 4598, 4807, 5060, 5324, 5566, 5852, 6118, 6655, 7084, 7315, 8470, 8740, 8855, 9196, 9317, 9614, 11132, 11495, 12236, 13310, 13915, 14630, 15295, 16093, 16940, 17710, 18634, 19228, 19481, 22990, 24035, 25289, 26620, 27830, 29260, 30590, 30613, 32186, 33649, 35420, 37268, 38962, 45980, 46585, 48070, 50578, 52877, 55660, 61180, 61226, 64372, 67298, 77924, 80465, 93170, 96140, 97405, 101156, 105754, 122452, 126445, 134596, 153065, 160930, 168245, 177023, 186340, 194810, 211508, 214291, 252890, 264385, 306130, 321860, 336490, 354046, 370139, 389620, 428582, 505780, 528770, 581647, 612260, 672980, 708092, 740278, 857164, 885115, 1057540, 1071455, 1163294, 1480556, 1770230, 1850695, 2142910, 2326588, 2908235, 3540460, 3701390, 4071529, 4285820, 5816470, 7402780, 8143058, 11632940, 16286116, 20357645, 40715290, 81430580]

約数ペア:

[(1, 81430580), (2, 40715290), (4, 20357645), (5, 16286116), (7, 11632940), (10, 8143058), (11, 7402780), (14, 5816470), (19, 4285820), (20, 4071529), (22, 3701390), (23, 3540460), (28, 2908235), (35, 2326588), (38, 2142910), (44, 1850695), (46, 1770230), (55, 1480556), (70, 1163294), (76, 1071455), (77, 1057540), (92, 885115), (95, 857164), (110, 740278), (115, 708092), (121, 672980), (133, 612260), (140, 581647), (154, 528770), (161, 505780), (190, 428582), (209, 389620), (220, 370139), (230, 354046), (242, 336490), (253, 321860), (266, 306130), (308, 264385), (322, 252890), (380, 214291), (385, 211508), (418, 194810), (437, 186340), (460, 177023), (484, 168245), (506, 160930), (532, 153065), (605, 134596), (644, 126445), (665, 122452), (770, 105754), (805, 101156), (836, 97405), (847, 96140), (874, 93170), (1012, 80465), (1045, 77924), (1210, 67298), (1265, 64372), (1330, 61226), (1331, 61180), (1463, 55660), (1540, 52877), (1610, 50578), (1694, 48070), (1748, 46585), (1771, 45980), (2090, 38962), (2185, 37268), (2299, 35420), (2420, 33649), (2530, 32186), (2660, 30613), (2662, 30590), (2783, 29260), (2926, 27830), (3059, 26620), (3220, 25289), (3388, 24035), (3542, 22990), (4180, 19481), (4235, 19228), (4370, 18634), (4598, 17710), (4807, 16940), (5060, 16093), (5324, 15295), (5566, 14630), (5852, 13915), (6118, 13310), (6655, 12236), (7084, 11495), (7315, 11132), (8470, 9614), (8740, 9317), (8855, 9196)]