30578860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 71018640

約数和(自身を除く): 40439780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 109, 130, 166, 169, 218, 260, 332, 338, 415, 436, 545, 676, 830, 845, 1079, 1090, 1417, 1660, 1690, 2158, 2180, 2834, 3380, 4316, 5395, 5668, 7085, 9047, 10790, 14027, 14170, 18094, 18421, 21580, 28054, 28340, 36188, 36842, 45235, 56108, 70135, 73684, 90470, 92105, 117611, 140270, 180940, 184210, 235222, 280540, 368420, 470444, 588055, 1176110, 1528943, 2352220, 3057886, 6115772, 7644715, 15289430, 30578860]

約数ペア:

[(1, 30578860), (2, 15289430), (4, 7644715), (5, 6115772), (10, 3057886), (13, 2352220), (20, 1528943), (26, 1176110), (52, 588055), (65, 470444), (83, 368420), (109, 280540), (130, 235222), (166, 184210), (169, 180940), (218, 140270), (260, 117611), (332, 92105), (338, 90470), (415, 73684), (436, 70135), (545, 56108), (676, 45235), (830, 36842), (845, 36188), (1079, 28340), (1090, 28054), (1417, 21580), (1660, 18421), (1690, 18094), (2158, 14170), (2180, 14027), (2834, 10790), (3380, 9047), (4316, 7085), (5395, 5668)]