1721662020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245251}}^1$

素因数の和:245282

約数の個数: 96

約数和(自身を含む): 5768327040

約数和(自身を除く): 4046665020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 3510, 7020, 245251, 490502, 735753, 981004, 1226255, 1471506, 2207259, 2452510, 2943012, 3188263, 3678765, 4414518, 4905020, 6376526, 6621777, 7357530, 8829036, 9564789, 11036295, 12753052, 13243554, 14715060, 15941315, 19129578, 22072590, 26487108, 28694367, 31882630, 33108885, 38259156, 44145180, 47823945, 57388734, 63765260, 66217770, 86083101, 95647890, 114777468, 132435540, 143471835, 172166202, 191295780, 286943670, 344332404, 430415505, 573887340, 860831010, 1721662020]

約数ペア:

[(1, 1721662020), (2, 860831010), (3, 573887340), (4, 430415505), (5, 344332404), (6, 286943670), (9, 191295780), (10, 172166202), (12, 143471835), (13, 132435540), (15, 114777468), (18, 95647890), (20, 86083101), (26, 66217770), (27, 63765260), (30, 57388734), (36, 47823945), (39, 44145180), (45, 38259156), (52, 33108885), (54, 31882630), (60, 28694367), (65, 26487108), (78, 22072590), (90, 19129578), (108, 15941315), (117, 14715060), (130, 13243554), (135, 12753052), (156, 11036295), (180, 9564789), (195, 8829036), (234, 7357530), (260, 6621777), (270, 6376526), (351, 4905020), (390, 4414518), (468, 3678765), (540, 3188263), (585, 2943012), (702, 2452510), (780, 2207259), (1170, 1471506), (1404, 1226255), (1755, 981004), (2340, 735753), (3510, 490502), (7020, 245251)]