898498640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{66457}}^1$

素因数の和:66496

約数の個数: 60

約数和(自身を含む): 2262097404

約数和(自身を除く): 1363598764

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 66457, 132914, 265828, 332285, 531656, 664570, 863941, 1063312, 1329140, 1727882, 2658280, 3455764, 4319705, 5316560, 6911528, 8639410, 11231233, 13823056, 17278820, 22462466, 34557640, 44924932, 56156165, 69115280, 89849864, 112312330, 179699728, 224624660, 449249320, 898498640]

約数ペア:

[(1, 898498640), (2, 449249320), (4, 224624660), (5, 179699728), (8, 112312330), (10, 89849864), (13, 69115280), (16, 56156165), (20, 44924932), (26, 34557640), (40, 22462466), (52, 17278820), (65, 13823056), (80, 11231233), (104, 8639410), (130, 6911528), (169, 5316560), (208, 4319705), (260, 3455764), (338, 2658280), (520, 1727882), (676, 1329140), (845, 1063312), (1040, 863941), (1352, 664570), (1690, 531656), (2704, 332285), (3380, 265828), (6760, 132914), (13520, 66457)]