251155320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{160997}}^1$

素因数の和:161024

約数の個数: 64

約数和(自身を含む): 811429920

約数和(自身を除く): 560274600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 160997, 321994, 482991, 643988, 804985, 965982, 1287976, 1609970, 1931964, 2092961, 2414955, 3219940, 3863928, 4185922, 4829910, 6278883, 6439880, 8371844, 9659820, 10464805, 12557766, 16743688, 19319640, 20929610, 25115532, 31394415, 41859220, 50231064, 62788830, 83718440, 125577660, 251155320]

約数ペア:

[(1, 251155320), (2, 125577660), (3, 83718440), (4, 62788830), (5, 50231064), (6, 41859220), (8, 31394415), (10, 25115532), (12, 20929610), (13, 19319640), (15, 16743688), (20, 12557766), (24, 10464805), (26, 9659820), (30, 8371844), (39, 6439880), (40, 6278883), (52, 4829910), (60, 4185922), (65, 3863928), (78, 3219940), (104, 2414955), (120, 2092961), (130, 1931964), (156, 1609970), (195, 1287976), (260, 965982), (312, 804985), (390, 643988), (520, 482991), (780, 321994), (1560, 160997)]