278325680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2579}}^1$

素因数の和:2682

約数の個数: 80

約数和(自身を含む): 691027200

約数和(自身を除く): 412701520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 1136, 1349, 1420, 1520, 2579, 2698, 2840, 5158, 5396, 5680, 6745, 10316, 10792, 12895, 13490, 20632, 21584, 25790, 26980, 41264, 49001, 51580, 53960, 98002, 103160, 107920, 183109, 196004, 206320, 245005, 366218, 392008, 490010, 732436, 784016, 915545, 980020, 1464872, 1831090, 1960040, 2929744, 3479071, 3662180, 3920080, 6958142, 7324360, 13916284, 14648720, 17395355, 27832568, 34790710, 55665136, 69581420, 139162840, 278325680]

約数ペア:

[(1, 278325680), (2, 139162840), (4, 69581420), (5, 55665136), (8, 34790710), (10, 27832568), (16, 17395355), (19, 14648720), (20, 13916284), (38, 7324360), (40, 6958142), (71, 3920080), (76, 3662180), (80, 3479071), (95, 2929744), (142, 1960040), (152, 1831090), (190, 1464872), (284, 980020), (304, 915545), (355, 784016), (380, 732436), (568, 490010), (710, 392008), (760, 366218), (1136, 245005), (1349, 206320), (1420, 196004), (1520, 183109), (2579, 107920), (2698, 103160), (2840, 98002), (5158, 53960), (5396, 51580), (5680, 49001), (6745, 41264), (10316, 26980), (10792, 25790), (12895, 21584), (13490, 20632)]