28211124920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{255443}}^1$

素因数の和:255716

約数の個数: 64

約数和(自身を含む): 69521639040

約数和(自身を除く): 41310514120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 251, 440, 502, 1004, 1255, 2008, 2510, 2761, 5020, 5522, 10040, 11044, 13805, 22088, 27610, 55220, 110440, 255443, 510886, 1021772, 1277215, 2043544, 2554430, 2809873, 5108860, 5619746, 10217720, 11239492, 14049365, 22478984, 28098730, 56197460, 64116193, 112394920, 128232386, 256464772, 320580965, 512929544, 641161930, 705278123, 1282323860, 1410556246, 2564647720, 2821112492, 3526390615, 5642224984, 7052781230, 14105562460, 28211124920]

約数ペア:

[(1, 28211124920), (2, 14105562460), (4, 7052781230), (5, 5642224984), (8, 3526390615), (10, 2821112492), (11, 2564647720), (20, 1410556246), (22, 1282323860), (40, 705278123), (44, 641161930), (55, 512929544), (88, 320580965), (110, 256464772), (220, 128232386), (251, 112394920), (440, 64116193), (502, 56197460), (1004, 28098730), (1255, 22478984), (2008, 14049365), (2510, 11239492), (2761, 10217720), (5020, 5619746), (5522, 5108860), (10040, 2809873), (11044, 2554430), (13805, 2043544), (22088, 1277215), (27610, 1021772), (55220, 510886), (110440, 255443)]