1289804360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{130547}}^1$

素因数の和:130590

約数の個数: 64

約数和(自身を含む): 3289809600

約数和(自身を除く): 2000005240

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 130547, 261094, 522188, 652735, 1044376, 1305470, 1697111, 2480393, 2610940, 3394222, 4960786, 5221880, 6788444, 8485555, 9921572, 12401965, 13576888, 16971110, 19843144, 24803930, 32245109, 33942220, 49607860, 64490218, 67884440, 99215720, 128980436, 161225545, 257960872, 322451090, 644902180, 1289804360]

約数ペア:

[(1, 1289804360), (2, 644902180), (4, 322451090), (5, 257960872), (8, 161225545), (10, 128980436), (13, 99215720), (19, 67884440), (20, 64490218), (26, 49607860), (38, 33942220), (40, 32245109), (52, 24803930), (65, 19843144), (76, 16971110), (95, 13576888), (104, 12401965), (130, 9921572), (152, 8485555), (190, 6788444), (247, 5221880), (260, 4960786), (380, 3394222), (494, 2610940), (520, 2480393), (760, 1697111), (988, 1305470), (1235, 1044376), (1976, 652735), (2470, 522188), (4940, 261094), (9880, 130547)]