15209720

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{659}}^1$

素因数の和:1247

約数の個数: 32

約数和(自身を含む): 34333200

約数和(自身を除く): 19123480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 659, 1154, 1318, 2308, 2636, 2885, 3295, 4616, 5272, 5770, 6590, 11540, 13180, 23080, 26360, 380243, 760486, 1520972, 1901215, 3041944, 3802430, 7604860, 15209720]

約数ペア:

[(1, 15209720), (2, 7604860), (4, 3802430), (5, 3041944), (8, 1901215), (10, 1520972), (20, 760486), (40, 380243), (577, 26360), (659, 23080), (1154, 13180), (1318, 11540), (2308, 6590), (2636, 5770), (2885, 5272), (3295, 4616)]