281227540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:433

約数の個数: 96

約数和(自身を含む): 666247680

約数和(自身を除く): 385020140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 89, 106, 110, 178, 212, 220, 265, 271, 356, 445, 530, 542, 583, 890, 979, 1060, 1084, 1166, 1355, 1780, 1958, 2332, 2710, 2915, 2981, 3916, 4717, 4895, 5420, 5830, 5962, 9434, 9790, 11660, 11924, 14363, 14905, 18868, 19580, 23585, 24119, 28726, 29810, 47170, 48238, 51887, 57452, 59620, 71815, 94340, 96476, 103774, 120595, 143630, 157993, 207548, 241190, 259435, 265309, 287260, 315986, 482380, 518870, 530618, 631972, 789965, 1037740, 1061236, 1278307, 1326545, 1579930, 2556614, 2653090, 3159860, 5113228, 5306180, 6391535, 12783070, 14061377, 25566140, 28122754, 56245508, 70306885, 140613770, 281227540]

約数ペア:

[(1, 281227540), (2, 140613770), (4, 70306885), (5, 56245508), (10, 28122754), (11, 25566140), (20, 14061377), (22, 12783070), (44, 6391535), (53, 5306180), (55, 5113228), (89, 3159860), (106, 2653090), (110, 2556614), (178, 1579930), (212, 1326545), (220, 1278307), (265, 1061236), (271, 1037740), (356, 789965), (445, 631972), (530, 530618), (542, 518870), (583, 482380), (890, 315986), (979, 287260), (1060, 265309), (1084, 259435), (1166, 241190), (1355, 207548), (1780, 157993), (1958, 143630), (2332, 120595), (2710, 103774), (2915, 96476), (2981, 94340), (3916, 71815), (4717, 59620), (4895, 57452), (5420, 51887), (5830, 48238), (5962, 47170), (9434, 29810), (9790, 28726), (11660, 24119), (11924, 23585), (14363, 19580), (14905, 18868)]