256375960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1\times {\mathrm{557}}^1$

素因数の和:916

約数の個数: 64

約数和(自身を含む): 595408320

約数和(自身を除く): 339032360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 311, 370, 557, 622, 740, 1114, 1244, 1480, 1555, 2228, 2488, 2785, 3110, 4456, 5570, 6220, 11140, 11507, 12440, 20609, 22280, 23014, 41218, 46028, 57535, 82436, 92056, 103045, 115070, 164872, 173227, 206090, 230140, 346454, 412180, 460280, 692908, 824360, 866135, 1385816, 1732270, 3464540, 6409399, 6929080, 12818798, 25637596, 32046995, 51275192, 64093990, 128187980, 256375960]

約数ペア:

[(1, 256375960), (2, 128187980), (4, 64093990), (5, 51275192), (8, 32046995), (10, 25637596), (20, 12818798), (37, 6929080), (40, 6409399), (74, 3464540), (148, 1732270), (185, 1385816), (296, 866135), (311, 824360), (370, 692908), (557, 460280), (622, 412180), (740, 346454), (1114, 230140), (1244, 206090), (1480, 173227), (1555, 164872), (2228, 115070), (2488, 103045), (2785, 92056), (3110, 82436), (4456, 57535), (5570, 46028), (6220, 41218), (11140, 23014), (11507, 22280), (12440, 20609)]