647910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 1763424

約数和(自身を除く): 1115514

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 313, 345, 414, 626, 690, 939, 1035, 1565, 1878, 2070, 2817, 3130, 4695, 5634, 7199, 9390, 14085, 14398, 21597, 28170, 35995, 43194, 64791, 71990, 107985, 129582, 215970, 323955, 647910]

約数ペア:

[(1, 647910), (2, 323955), (3, 215970), (5, 129582), (6, 107985), (9, 71990), (10, 64791), (15, 43194), (18, 35995), (23, 28170), (30, 21597), (45, 14398), (46, 14085), (69, 9390), (90, 7199), (115, 5634), (138, 4695), (207, 3130), (230, 2817), (313, 2070), (345, 1878), (414, 1565), (626, 1035), (690, 939)]