15890992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4021}}^1$

素因数の和:4061

約数の個数: 40

約数和(自身を含む): 34910960

約数和(自身を除く): 19019968

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4021, 8042, 16084, 32168, 52273, 64336, 76399, 104546, 152798, 209092, 305596, 418184, 611192, 836368, 993187, 1222384, 1986374, 3972748, 7945496, 15890992]

約数ペア:

[(1, 15890992), (2, 7945496), (4, 3972748), (8, 1986374), (13, 1222384), (16, 993187), (19, 836368), (26, 611192), (38, 418184), (52, 305596), (76, 209092), (104, 152798), (152, 104546), (208, 76399), (247, 64336), (304, 52273), (494, 32168), (988, 16084), (1976, 8042), (3952, 4021)]