397754760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{254971}}^1$

素因数の和:254998

約数の個数: 64

約数和(自身を含む): 1285058880

約数和(自身を除く): 887304120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 254971, 509942, 764913, 1019884, 1274855, 1529826, 2039768, 2549710, 3059652, 3314623, 3824565, 5099420, 6119304, 6629246, 7649130, 9943869, 10198840, 13258492, 15298260, 16573115, 19887738, 26516984, 30596520, 33146230, 39775476, 49719345, 66292460, 79550952, 99438690, 132584920, 198877380, 397754760]

約数ペア:

[(1, 397754760), (2, 198877380), (3, 132584920), (4, 99438690), (5, 79550952), (6, 66292460), (8, 49719345), (10, 39775476), (12, 33146230), (13, 30596520), (15, 26516984), (20, 19887738), (24, 16573115), (26, 15298260), (30, 13258492), (39, 10198840), (40, 9943869), (52, 7649130), (60, 6629246), (65, 6119304), (78, 5099420), (104, 3824565), (120, 3314623), (130, 3059652), (156, 2549710), (195, 2039768), (260, 1529826), (312, 1274855), (390, 1019884), (520, 764913), (780, 509942), (1560, 254971)]