28701970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 61378560

約数和(自身を除く): 32676590

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 110, 155, 190, 209, 310, 341, 418, 443, 589, 682, 886, 1045, 1178, 1705, 2090, 2215, 2945, 3410, 4430, 4873, 5890, 6479, 8417, 9746, 12958, 13733, 16834, 24365, 27466, 32395, 42085, 48730, 64790, 68665, 84170, 92587, 137330, 151063, 185174, 260927, 302126, 462935, 521854, 755315, 925870, 1304635, 1510630, 2609270, 2870197, 5740394, 14350985, 28701970]

約数ペア:

[(1, 28701970), (2, 14350985), (5, 5740394), (10, 2870197), (11, 2609270), (19, 1510630), (22, 1304635), (31, 925870), (38, 755315), (55, 521854), (62, 462935), (95, 302126), (110, 260927), (155, 185174), (190, 151063), (209, 137330), (310, 92587), (341, 84170), (418, 68665), (443, 64790), (589, 48730), (682, 42085), (886, 32395), (1045, 27466), (1178, 24365), (1705, 16834), (2090, 13733), (2215, 12958), (2945, 9746), (3410, 8417), (4430, 6479), (4873, 5890)]