8419280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:252

約数の個数: 80

約数和(自身を含む): 21427200

約数和(自身を除く): 13007920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 191, 232, 290, 304, 380, 382, 464, 551, 580, 760, 764, 955, 1102, 1160, 1520, 1528, 1910, 2204, 2320, 2755, 3056, 3629, 3820, 4408, 5510, 5539, 7258, 7640, 8816, 11020, 11078, 14516, 15280, 18145, 22040, 22156, 27695, 29032, 36290, 44080, 44312, 55390, 58064, 72580, 88624, 105241, 110780, 145160, 210482, 221560, 290320, 420964, 443120, 526205, 841928, 1052410, 1683856, 2104820, 4209640, 8419280]

約数ペア:

[(1, 8419280), (2, 4209640), (4, 2104820), (5, 1683856), (8, 1052410), (10, 841928), (16, 526205), (19, 443120), (20, 420964), (29, 290320), (38, 221560), (40, 210482), (58, 145160), (76, 110780), (80, 105241), (95, 88624), (116, 72580), (145, 58064), (152, 55390), (190, 44312), (191, 44080), (232, 36290), (290, 29032), (304, 27695), (380, 22156), (382, 22040), (464, 18145), (551, 15280), (580, 14516), (760, 11078), (764, 11020), (955, 8816), (1102, 7640), (1160, 7258), (1520, 5539), (1528, 5510), (1910, 4408), (2204, 3820), (2320, 3629), (2755, 3056)]