21926320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:782

約数の個数: 80

約数和(自身を含む): 56871360

約数和(自身を除く): 34945040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 727, 754, 1040, 1160, 1454, 1508, 1885, 2320, 2908, 3016, 3635, 3770, 5816, 6032, 7270, 7540, 9451, 11632, 14540, 15080, 18902, 21083, 29080, 30160, 37804, 42166, 47255, 58160, 75608, 84332, 94510, 105415, 151216, 168664, 189020, 210830, 274079, 337328, 378040, 421660, 548158, 756080, 843320, 1096316, 1370395, 1686640, 2192632, 2740790, 4385264, 5481580, 10963160, 21926320]

約数ペア:

[(1, 21926320), (2, 10963160), (4, 5481580), (5, 4385264), (8, 2740790), (10, 2192632), (13, 1686640), (16, 1370395), (20, 1096316), (26, 843320), (29, 756080), (40, 548158), (52, 421660), (58, 378040), (65, 337328), (80, 274079), (104, 210830), (116, 189020), (130, 168664), (145, 151216), (208, 105415), (232, 94510), (260, 84332), (290, 75608), (377, 58160), (464, 47255), (520, 42166), (580, 37804), (727, 30160), (754, 29080), (1040, 21083), (1160, 18902), (1454, 15080), (1508, 14540), (1885, 11632), (2320, 9451), (2908, 7540), (3016, 7270), (3635, 6032), (3770, 5816)]