100721480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1974

約数の個数: 64

約数和(自身を含む): 239500800

約数和(自身を除く): 138779320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 1889, 2666, 3778, 5332, 6665, 7556, 9445, 10664, 13330, 15112, 18890, 26660, 37780, 53320, 58559, 75560, 81227, 117118, 162454, 234236, 292795, 324908, 406135, 468472, 585590, 649816, 812270, 1171180, 1624540, 2342360, 2518037, 3249080, 5036074, 10072148, 12590185, 20144296, 25180370, 50360740, 100721480]

約数ペア:

[(1, 100721480), (2, 50360740), (4, 25180370), (5, 20144296), (8, 12590185), (10, 10072148), (20, 5036074), (31, 3249080), (40, 2518037), (43, 2342360), (62, 1624540), (86, 1171180), (124, 812270), (155, 649816), (172, 585590), (215, 468472), (248, 406135), (310, 324908), (344, 292795), (430, 234236), (620, 162454), (860, 117118), (1240, 81227), (1333, 75560), (1720, 58559), (1889, 53320), (2666, 37780), (3778, 26660), (5332, 18890), (6665, 15112), (7556, 13330), (9445, 10664)]