913378640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{2579}}^1$

素因数の和:2844

約数の個数: 80

約数和(自身を含む): 2245838400

約数和(自身を除く): 1332459760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 233, 304, 380, 466, 760, 932, 1165, 1520, 1864, 2330, 2579, 3728, 4427, 4660, 5158, 8854, 9320, 10316, 12895, 17708, 18640, 20632, 22135, 25790, 35416, 41264, 44270, 49001, 51580, 70832, 88540, 98002, 103160, 177080, 196004, 206320, 245005, 354160, 392008, 490010, 600907, 784016, 980020, 1201814, 1960040, 2403628, 3004535, 3920080, 4807256, 6009070, 9614512, 11417233, 12018140, 22834466, 24036280, 45668932, 48072560, 57086165, 91337864, 114172330, 182675728, 228344660, 456689320, 913378640]

約数ペア:

[(1, 913378640), (2, 456689320), (4, 228344660), (5, 182675728), (8, 114172330), (10, 91337864), (16, 57086165), (19, 48072560), (20, 45668932), (38, 24036280), (40, 22834466), (76, 12018140), (80, 11417233), (95, 9614512), (152, 6009070), (190, 4807256), (233, 3920080), (304, 3004535), (380, 2403628), (466, 1960040), (760, 1201814), (932, 980020), (1165, 784016), (1520, 600907), (1864, 490010), (2330, 392008), (2579, 354160), (3728, 245005), (4427, 206320), (4660, 196004), (5158, 177080), (8854, 103160), (9320, 98002), (10316, 88540), (12895, 70832), (17708, 51580), (18640, 49001), (20632, 44270), (22135, 41264), (25790, 35416)]