217505970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19973}}^1$

素因数の和:20008

約数の個数: 72

約数和(自身を含む): 621630828

約数和(自身を除く): 404124858

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1815, 2178, 3630, 5445, 10890, 19973, 39946, 59919, 99865, 119838, 179757, 199730, 219703, 299595, 359514, 439406, 599190, 659109, 898785, 1098515, 1318218, 1797570, 1977327, 2197030, 2416733, 3295545, 3954654, 4833466, 6591090, 7250199, 9886635, 12083665, 14500398, 19773270, 21750597, 24167330, 36250995, 43501194, 72501990, 108752985, 217505970]

約数ペア:

[(1, 217505970), (2, 108752985), (3, 72501990), (5, 43501194), (6, 36250995), (9, 24167330), (10, 21750597), (11, 19773270), (15, 14500398), (18, 12083665), (22, 9886635), (30, 7250199), (33, 6591090), (45, 4833466), (55, 3954654), (66, 3295545), (90, 2416733), (99, 2197030), (110, 1977327), (121, 1797570), (165, 1318218), (198, 1098515), (242, 898785), (330, 659109), (363, 599190), (495, 439406), (605, 359514), (726, 299595), (990, 219703), (1089, 199730), (1210, 179757), (1815, 119838), (2178, 99865), (3630, 59919), (5445, 39946), (10890, 19973)]