17895540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{22943}}^1$

素因数の和:22968

約数の個数: 48

約数和(自身を含む): 53964288

約数和(自身を除く): 36068748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 22943, 45886, 68829, 91772, 114715, 137658, 229430, 275316, 298259, 344145, 458860, 596518, 688290, 894777, 1193036, 1376580, 1491295, 1789554, 2982590, 3579108, 4473885, 5965180, 8947770, 17895540]

約数ペア:

[(1, 17895540), (2, 8947770), (3, 5965180), (4, 4473885), (5, 3579108), (6, 2982590), (10, 1789554), (12, 1491295), (13, 1376580), (15, 1193036), (20, 894777), (26, 688290), (30, 596518), (39, 458860), (52, 344145), (60, 298259), (65, 275316), (78, 229430), (130, 137658), (156, 114715), (195, 91772), (260, 68829), (390, 45886), (780, 22943)]