28927960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 68947200

約数和(自身を除く): 40019240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 569, 620, 820, 1138, 1240, 1271, 1640, 2276, 2542, 2845, 4552, 5084, 5690, 6355, 10168, 11380, 12710, 17639, 22760, 23329, 25420, 35278, 46658, 50840, 70556, 88195, 93316, 116645, 141112, 176390, 186632, 233290, 352780, 466580, 705560, 723199, 933160, 1446398, 2892796, 3615995, 5785592, 7231990, 14463980, 28927960]

約数ペア:

[(1, 28927960), (2, 14463980), (4, 7231990), (5, 5785592), (8, 3615995), (10, 2892796), (20, 1446398), (31, 933160), (40, 723199), (41, 705560), (62, 466580), (82, 352780), (124, 233290), (155, 186632), (164, 176390), (205, 141112), (248, 116645), (310, 93316), (328, 88195), (410, 70556), (569, 50840), (620, 46658), (820, 35278), (1138, 25420), (1240, 23329), (1271, 22760), (1640, 17639), (2276, 12710), (2542, 11380), (2845, 10168), (4552, 6355), (5084, 5690)]