2573740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 6138720

約数和(自身を除く): 3564980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 521, 988, 1042, 1235, 2084, 2470, 2605, 4940, 5210, 6773, 9899, 10420, 13546, 19798, 27092, 33865, 39596, 49495, 67730, 98990, 128687, 135460, 197980, 257374, 514748, 643435, 1286870, 2573740]

約数ペア:

[(1, 2573740), (2, 1286870), (4, 643435), (5, 514748), (10, 257374), (13, 197980), (19, 135460), (20, 128687), (26, 98990), (38, 67730), (52, 49495), (65, 39596), (76, 33865), (95, 27092), (130, 19798), (190, 13546), (247, 10420), (260, 9899), (380, 6773), (494, 5210), (521, 4940), (988, 2605), (1042, 2470), (1235, 2084)]