20888978160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1225879}}^1$

素因数の和:1225966

約数の個数: 80

約数和(自身を含む): 65667939840

約数和(自身を除く): 44778961680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 5680, 8520, 17040, 1225879, 2451758, 3677637, 4903516, 6129395, 7355274, 9807032, 12258790, 14710548, 18388185, 19614064, 24517580, 29421096, 36776370, 49035160, 58842192, 73552740, 87037409, 98070320, 147105480, 174074818, 261112227, 294210960, 348149636, 435187045, 522224454, 696299272, 870374090, 1044448908, 1305561135, 1392598544, 1740748180, 2088897816, 2611122270, 3481496360, 4177795632, 5222244540, 6962992720, 10444489080, 20888978160]

約数ペア:

[(1, 20888978160), (2, 10444489080), (3, 6962992720), (4, 5222244540), (5, 4177795632), (6, 3481496360), (8, 2611122270), (10, 2088897816), (12, 1740748180), (15, 1392598544), (16, 1305561135), (20, 1044448908), (24, 870374090), (30, 696299272), (40, 522224454), (48, 435187045), (60, 348149636), (71, 294210960), (80, 261112227), (120, 174074818), (142, 147105480), (213, 98070320), (240, 87037409), (284, 73552740), (355, 58842192), (426, 49035160), (568, 36776370), (710, 29421096), (852, 24517580), (1065, 19614064), (1136, 18388185), (1420, 14710548), (1704, 12258790), (2130, 9807032), (2840, 7355274), (3408, 6129395), (4260, 4903516), (5680, 3677637), (8520, 2451758), (17040, 1225879)]