16571780

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 35985600

約数和(自身を除く): 19413820

約数列:

[1, 2, 4, 5, 10, 20, 67, 83, 134, 149, 166, 268, 298, 332, 335, 415, 596, 670, 745, 830, 1340, 1490, 1660, 2980, 5561, 9983, 11122, 12367, 19966, 22244, 24734, 27805, 39932, 49468, 49915, 55610, 61835, 99830, 111220, 123670, 199660, 247340, 828589, 1657178, 3314356, 4142945, 8285890, 16571780]

約数ペア:

[(1, 16571780), (2, 8285890), (4, 4142945), (5, 3314356), (10, 1657178), (20, 828589), (67, 247340), (83, 199660), (134, 123670), (149, 111220), (166, 99830), (268, 61835), (298, 55610), (332, 49915), (335, 49468), (415, 39932), (596, 27805), (670, 24734), (745, 22244), (830, 19966), (1340, 12367), (1490, 11122), (1660, 9983), (2980, 5561)]