15668240

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{571}}^1$

素因数の和:605

約数の個数: 80

約数和(自身を含む): 42556800

約数和(自身を除く): 26888560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 571, 686, 784, 980, 1142, 1372, 1715, 1960, 2284, 2744, 2855, 3430, 3920, 3997, 4568, 5488, 5710, 6860, 7994, 9136, 11420, 13720, 15988, 19985, 22840, 27440, 27979, 31976, 39970, 45680, 55958, 63952, 79940, 111916, 139895, 159880, 195853, 223832, 279790, 319760, 391706, 447664, 559580, 783412, 979265, 1119160, 1566824, 1958530, 2238320, 3133648, 3917060, 7834120, 15668240]

約数ペア:

[(1, 15668240), (2, 7834120), (4, 3917060), (5, 3133648), (7, 2238320), (8, 1958530), (10, 1566824), (14, 1119160), (16, 979265), (20, 783412), (28, 559580), (35, 447664), (40, 391706), (49, 319760), (56, 279790), (70, 223832), (80, 195853), (98, 159880), (112, 139895), (140, 111916), (196, 79940), (245, 63952), (280, 55958), (343, 45680), (392, 39970), (490, 31976), (560, 27979), (571, 27440), (686, 22840), (784, 19985), (980, 15988), (1142, 13720), (1372, 11420), (1715, 9136), (1960, 7994), (2284, 6860), (2744, 5710), (2855, 5488), (3430, 4568), (3920, 3997)]