20081700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 108

約数和(自身を含む): 64284948

約数和(自身を除く): 44203248

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 53, 60, 75, 90, 100, 106, 150, 159, 180, 212, 225, 265, 300, 318, 421, 450, 477, 530, 636, 795, 842, 900, 954, 1060, 1263, 1325, 1590, 1684, 1908, 2105, 2385, 2526, 2650, 3180, 3789, 3975, 4210, 4770, 5052, 5300, 6315, 7578, 7950, 8420, 9540, 10525, 11925, 12630, 15156, 15900, 18945, 21050, 22313, 23850, 25260, 31575, 37890, 42100, 44626, 47700, 63150, 66939, 75780, 89252, 94725, 111565, 126300, 133878, 189450, 200817, 223130, 267756, 334695, 378900, 401634, 446260, 557825, 669390, 803268, 1004085, 1115650, 1338780, 1673475, 2008170, 2231300, 3346950, 4016340, 5020425, 6693900, 10040850, 20081700]

約数ペア:

[(1, 20081700), (2, 10040850), (3, 6693900), (4, 5020425), (5, 4016340), (6, 3346950), (9, 2231300), (10, 2008170), (12, 1673475), (15, 1338780), (18, 1115650), (20, 1004085), (25, 803268), (30, 669390), (36, 557825), (45, 446260), (50, 401634), (53, 378900), (60, 334695), (75, 267756), (90, 223130), (100, 200817), (106, 189450), (150, 133878), (159, 126300), (180, 111565), (212, 94725), (225, 89252), (265, 75780), (300, 66939), (318, 63150), (421, 47700), (450, 44626), (477, 42100), (530, 37890), (636, 31575), (795, 25260), (842, 23850), (900, 22313), (954, 21050), (1060, 18945), (1263, 15900), (1325, 15156), (1590, 12630), (1684, 11925), (1908, 10525), (2105, 9540), (2385, 8420), (2526, 7950), (2650, 7578), (3180, 6315), (3789, 5300), (3975, 5052), (4210, 4770)]