20409960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{601}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 61548480

約数和(自身を除く): 41138520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 283, 566, 601, 849, 1132, 1202, 1415, 1698, 1803, 2264, 2404, 2830, 3005, 3396, 3606, 4245, 4808, 5660, 6010, 6792, 7212, 8490, 9015, 11320, 12020, 14424, 16980, 18030, 24040, 33960, 36060, 72120, 170083, 340166, 510249, 680332, 850415, 1020498, 1360664, 1700830, 2040996, 2551245, 3401660, 4081992, 5102490, 6803320, 10204980, 20409960]

約数ペア:

[(1, 20409960), (2, 10204980), (3, 6803320), (4, 5102490), (5, 4081992), (6, 3401660), (8, 2551245), (10, 2040996), (12, 1700830), (15, 1360664), (20, 1020498), (24, 850415), (30, 680332), (40, 510249), (60, 340166), (120, 170083), (283, 72120), (566, 36060), (601, 33960), (849, 24040), (1132, 18030), (1202, 16980), (1415, 14424), (1698, 12020), (1803, 11320), (2264, 9015), (2404, 8490), (2830, 7212), (3005, 6792), (3396, 6010), (3606, 5660), (4245, 4808)]