8391160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 20311200

約数和(自身を除く): 11920040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 181, 190, 244, 305, 362, 380, 488, 610, 724, 760, 905, 1159, 1220, 1448, 1810, 2318, 2440, 3439, 3620, 4636, 5795, 6878, 7240, 9272, 11041, 11590, 13756, 17195, 22082, 23180, 27512, 34390, 44164, 46360, 55205, 68780, 88328, 110410, 137560, 209779, 220820, 419558, 441640, 839116, 1048895, 1678232, 2097790, 4195580, 8391160]

約数ペア:

[(1, 8391160), (2, 4195580), (4, 2097790), (5, 1678232), (8, 1048895), (10, 839116), (19, 441640), (20, 419558), (38, 220820), (40, 209779), (61, 137560), (76, 110410), (95, 88328), (122, 68780), (152, 55205), (181, 46360), (190, 44164), (244, 34390), (305, 27512), (362, 23180), (380, 22082), (488, 17195), (610, 13756), (724, 11590), (760, 11041), (905, 9272), (1159, 7240), (1220, 6878), (1448, 5795), (1810, 4636), (2318, 3620), (2440, 3439)]