531990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 1448928

約数和(自身を除く): 916938

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 257, 345, 414, 514, 690, 771, 1035, 1285, 1542, 2070, 2313, 2570, 3855, 4626, 5911, 7710, 11565, 11822, 17733, 23130, 29555, 35466, 53199, 59110, 88665, 106398, 177330, 265995, 531990]

約数ペア:

[(1, 531990), (2, 265995), (3, 177330), (5, 106398), (6, 88665), (9, 59110), (10, 53199), (15, 35466), (18, 29555), (23, 23130), (30, 17733), (45, 11822), (46, 11565), (69, 7710), (90, 5911), (115, 4626), (138, 3855), (207, 2570), (230, 2313), (257, 2070), (345, 1542), (414, 1285), (514, 1035), (690, 771)]