642783990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{931571}}^1$

素因数の和:931604

約数の個数: 32

約数和(自身を含む): 1609756416

約数和(自身を除く): 966972426

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 931571, 1863142, 2794713, 4657855, 5589426, 9315710, 13973565, 21426133, 27947130, 42852266, 64278399, 107130665, 128556798, 214261330, 321391995, 642783990]

約数ペア:

[(1, 642783990), (2, 321391995), (3, 214261330), (5, 128556798), (6, 107130665), (10, 64278399), (15, 42852266), (23, 27947130), (30, 21426133), (46, 13973565), (69, 9315710), (115, 5589426), (138, 4657855), (230, 2794713), (345, 1863142), (690, 931571)]