20187680224

素因数分解:

$2^5\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{277}}^1$

素因数の和:720

約数の個数: 96

約数和(自身を含む): 40890286080

約数和(自身を除く): 20702605856

約数列:

[1, 2, 4, 8, 16, 32, 79, 127, 158, 227, 254, 277, 316, 454, 508, 554, 632, 908, 1016, 1108, 1264, 1816, 2032, 2216, 2528, 3632, 4064, 4432, 7264, 8864, 10033, 17933, 20066, 21883, 28829, 35179, 35866, 40132, 43766, 57658, 62879, 70358, 71732, 80264, 87532, 115316, 125758, 140716, 143464, 160528, 175064, 230632, 251516, 281432, 286928, 321056, 350128, 461264, 503032, 562864, 573856, 700256, 922528, 1006064, 1125728, 2012128, 2277491, 2779141, 4554982, 4967441, 5558282, 7985633, 9109964, 9934882, 11116564, 15971266, 18219928, 19869764, 22233128, 31942532, 36439856, 39739528, 44466256, 63885064, 72879712, 79479056, 88932512, 127770128, 158958112, 255540256, 630865007, 1261730014, 2523460028, 5046920056, 10093840112, 20187680224]

約数ペア:

[(1, 20187680224), (2, 10093840112), (4, 5046920056), (8, 2523460028), (16, 1261730014), (32, 630865007), (79, 255540256), (127, 158958112), (158, 127770128), (227, 88932512), (254, 79479056), (277, 72879712), (316, 63885064), (454, 44466256), (508, 39739528), (554, 36439856), (632, 31942532), (908, 22233128), (1016, 19869764), (1108, 18219928), (1264, 15971266), (1816, 11116564), (2032, 9934882), (2216, 9109964), (2528, 7985633), (3632, 5558282), (4064, 4967441), (4432, 4554982), (7264, 2779141), (8864, 2277491), (10033, 2012128), (17933, 1125728), (20066, 1006064), (21883, 922528), (28829, 700256), (35179, 573856), (35866, 562864), (40132, 503032), (43766, 461264), (57658, 350128), (62879, 321056), (70358, 286928), (71732, 281432), (80264, 251516), (87532, 230632), (115316, 175064), (125758, 160528), (140716, 143464)]