243277840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233921}}^1$

素因数の和:233947

約数の個数: 40

約数和(自身を含む): 609132888

約数和(自身を除く): 365855048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 233921, 467842, 935684, 1169605, 1871368, 2339210, 3040973, 3742736, 4678420, 6081946, 9356840, 12163892, 15204865, 18713680, 24327784, 30409730, 48655568, 60819460, 121638920, 243277840]

約数ペア:

[(1, 243277840), (2, 121638920), (4, 60819460), (5, 48655568), (8, 30409730), (10, 24327784), (13, 18713680), (16, 15204865), (20, 12163892), (26, 9356840), (40, 6081946), (52, 4678420), (65, 3742736), (80, 3040973), (104, 2339210), (130, 1871368), (208, 1169605), (260, 935684), (520, 467842), (1040, 233921)]