209997840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67307}}^1$

素因数の和:67336

約数の個数: 80

約数和(自身を含む): 701080128

約数和(自身を除く): 491082288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 67307, 134614, 201921, 269228, 336535, 403842, 538456, 673070, 807684, 874991, 1009605, 1076912, 1346140, 1615368, 1749982, 2019210, 2624973, 2692280, 3230736, 3499964, 4038420, 4374955, 5249946, 5384560, 6999928, 8076840, 8749910, 10499892, 13124865, 13999856, 16153680, 17499820, 20999784, 26249730, 34999640, 41999568, 52499460, 69999280, 104998920, 209997840]

約数ペア:

[(1, 209997840), (2, 104998920), (3, 69999280), (4, 52499460), (5, 41999568), (6, 34999640), (8, 26249730), (10, 20999784), (12, 17499820), (13, 16153680), (15, 13999856), (16, 13124865), (20, 10499892), (24, 8749910), (26, 8076840), (30, 6999928), (39, 5384560), (40, 5249946), (48, 4374955), (52, 4038420), (60, 3499964), (65, 3230736), (78, 2692280), (80, 2624973), (104, 2019210), (120, 1749982), (130, 1615368), (156, 1346140), (195, 1076912), (208, 1009605), (240, 874991), (260, 807684), (312, 673070), (390, 538456), (520, 403842), (624, 336535), (780, 269228), (1040, 201921), (1560, 134614), (3120, 67307)]