649980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 2070432

約数和(自身を除く): 1420452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 157, 180, 207, 230, 276, 314, 345, 414, 460, 471, 628, 690, 785, 828, 942, 1035, 1380, 1413, 1570, 1884, 2070, 2355, 2826, 3140, 3611, 4140, 4710, 5652, 7065, 7222, 9420, 10833, 14130, 14444, 18055, 21666, 28260, 32499, 36110, 43332, 54165, 64998, 72220, 108330, 129996, 162495, 216660, 324990, 649980]

約数ペア:

[(1, 649980), (2, 324990), (3, 216660), (4, 162495), (5, 129996), (6, 108330), (9, 72220), (10, 64998), (12, 54165), (15, 43332), (18, 36110), (20, 32499), (23, 28260), (30, 21666), (36, 18055), (45, 14444), (46, 14130), (60, 10833), (69, 9420), (90, 7222), (92, 7065), (115, 5652), (138, 4710), (157, 4140), (180, 3611), (207, 3140), (230, 2826), (276, 2355), (314, 2070), (345, 1884), (414, 1570), (460, 1413), (471, 1380), (628, 1035), (690, 942), (785, 828)]