31731440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2347}}^1$

素因数の和:2386

約数の個数: 60

約数和(自身を含む): 79921224

約数和(自身を除く): 48189784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2347, 2704, 3380, 4694, 6760, 9388, 11735, 13520, 18776, 23470, 30511, 37552, 46940, 61022, 93880, 122044, 152555, 187760, 244088, 305110, 396643, 488176, 610220, 793286, 1220440, 1586572, 1983215, 2440880, 3173144, 3966430, 6346288, 7932860, 15865720, 31731440]

約数ペア:

[(1, 31731440), (2, 15865720), (4, 7932860), (5, 6346288), (8, 3966430), (10, 3173144), (13, 2440880), (16, 1983215), (20, 1586572), (26, 1220440), (40, 793286), (52, 610220), (65, 488176), (80, 396643), (104, 305110), (130, 244088), (169, 187760), (208, 152555), (260, 122044), (338, 93880), (520, 61022), (676, 46940), (845, 37552), (1040, 30511), (1352, 23470), (1690, 18776), (2347, 13520), (2704, 11735), (3380, 9388), (4694, 6760)]