81444360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1049}}^1$

素因数の和:1710

約数の個数: 64

約数和(自身を含む): 244944000

約数和(自身を除く): 163499640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 647, 1049, 1294, 1941, 2098, 2588, 3147, 3235, 3882, 4196, 5176, 5245, 6294, 6470, 7764, 8392, 9705, 10490, 12588, 12940, 15528, 15735, 19410, 20980, 25176, 25880, 31470, 38820, 41960, 62940, 77640, 125880, 678703, 1357406, 2036109, 2714812, 3393515, 4072218, 5429624, 6787030, 8144436, 10180545, 13574060, 16288872, 20361090, 27148120, 40722180, 81444360]

約数ペア:

[(1, 81444360), (2, 40722180), (3, 27148120), (4, 20361090), (5, 16288872), (6, 13574060), (8, 10180545), (10, 8144436), (12, 6787030), (15, 5429624), (20, 4072218), (24, 3393515), (30, 2714812), (40, 2036109), (60, 1357406), (120, 678703), (647, 125880), (1049, 77640), (1294, 62940), (1941, 41960), (2098, 38820), (2588, 31470), (3147, 25880), (3235, 25176), (3882, 20980), (4196, 19410), (5176, 15735), (5245, 15528), (6294, 12940), (6470, 12588), (7764, 10490), (8392, 9705)]