19956420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10079}}^1$

素因数の和:10105

約数の個数: 72

約数和(自身を含む): 66044160

約数和(自身を除く): 46087740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10079, 20158, 30237, 40316, 50395, 60474, 90711, 100790, 110869, 120948, 151185, 181422, 201580, 221738, 302370, 332607, 362844, 443476, 453555, 554345, 604740, 665214, 907110, 997821, 1108690, 1330428, 1663035, 1814220, 1995642, 2217380, 3326070, 3991284, 4989105, 6652140, 9978210, 19956420]

約数ペア:

[(1, 19956420), (2, 9978210), (3, 6652140), (4, 4989105), (5, 3991284), (6, 3326070), (9, 2217380), (10, 1995642), (11, 1814220), (12, 1663035), (15, 1330428), (18, 1108690), (20, 997821), (22, 907110), (30, 665214), (33, 604740), (36, 554345), (44, 453555), (45, 443476), (55, 362844), (60, 332607), (66, 302370), (90, 221738), (99, 201580), (110, 181422), (132, 151185), (165, 120948), (180, 110869), (198, 100790), (220, 90711), (330, 60474), (396, 50395), (495, 40316), (660, 30237), (990, 20158), (1980, 10079)]