40701880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 94944960

約数和(自身を除く): 54243080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 73, 106, 146, 212, 263, 265, 292, 365, 424, 526, 530, 584, 730, 1052, 1060, 1315, 1460, 2104, 2120, 2630, 2920, 3869, 5260, 7738, 10520, 13939, 15476, 19199, 19345, 27878, 30952, 38398, 38690, 55756, 69695, 76796, 77380, 95995, 111512, 139390, 153592, 154760, 191990, 278780, 383980, 557560, 767960, 1017547, 2035094, 4070188, 5087735, 8140376, 10175470, 20350940, 40701880]

約数ペア:

[(1, 40701880), (2, 20350940), (4, 10175470), (5, 8140376), (8, 5087735), (10, 4070188), (20, 2035094), (40, 1017547), (53, 767960), (73, 557560), (106, 383980), (146, 278780), (212, 191990), (263, 154760), (265, 153592), (292, 139390), (365, 111512), (424, 95995), (526, 77380), (530, 76796), (584, 69695), (730, 55756), (1052, 38690), (1060, 38398), (1315, 30952), (1460, 27878), (2104, 19345), (2120, 19199), (2630, 15476), (2920, 13939), (3869, 10520), (5260, 7738)]