28287480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18133}}^1$

素因数の和:18160

約数の個数: 64

約数和(自身を含む): 91395360

約数和(自身を除く): 63107880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18133, 36266, 54399, 72532, 90665, 108798, 145064, 181330, 217596, 235729, 271995, 362660, 435192, 471458, 543990, 707187, 725320, 942916, 1087980, 1178645, 1414374, 1885832, 2175960, 2357290, 2828748, 3535935, 4714580, 5657496, 7071870, 9429160, 14143740, 28287480]

約数ペア:

[(1, 28287480), (2, 14143740), (3, 9429160), (4, 7071870), (5, 5657496), (6, 4714580), (8, 3535935), (10, 2828748), (12, 2357290), (13, 2175960), (15, 1885832), (20, 1414374), (24, 1178645), (26, 1087980), (30, 942916), (39, 725320), (40, 707187), (52, 543990), (60, 471458), (65, 435192), (78, 362660), (104, 271995), (120, 235729), (130, 217596), (156, 181330), (195, 145064), (260, 108798), (312, 90665), (390, 72532), (520, 54399), (780, 36266), (1560, 18133)]