7971640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 20023200

約数和(自身を除く): 12051560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 617, 646, 680, 760, 1234, 1292, 1615, 2468, 2584, 3085, 3230, 4936, 6170, 6460, 10489, 11723, 12340, 12920, 20978, 23446, 24680, 41956, 46892, 52445, 58615, 83912, 93784, 104890, 117230, 199291, 209780, 234460, 398582, 419560, 468920, 797164, 996455, 1594328, 1992910, 3985820, 7971640]

約数ペア:

[(1, 7971640), (2, 3985820), (4, 1992910), (5, 1594328), (8, 996455), (10, 797164), (17, 468920), (19, 419560), (20, 398582), (34, 234460), (38, 209780), (40, 199291), (68, 117230), (76, 104890), (85, 93784), (95, 83912), (136, 58615), (152, 52445), (170, 46892), (190, 41956), (323, 24680), (340, 23446), (380, 20978), (617, 12920), (646, 12340), (680, 11723), (760, 10489), (1234, 6460), (1292, 6170), (1615, 4936), (2468, 3230), (2584, 3085)]