25416040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1382

約数の個数: 64

約数和(自身を含む): 63297360

約数和(自身を除く): 37881320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1321, 1480, 1924, 2405, 2642, 3848, 4810, 5284, 6605, 9620, 10568, 13210, 17173, 19240, 26420, 34346, 48877, 52840, 68692, 85865, 97754, 137384, 171730, 195508, 244385, 343460, 391016, 488770, 635401, 686920, 977540, 1270802, 1955080, 2541604, 3177005, 5083208, 6354010, 12708020, 25416040]

約数ペア:

[(1, 25416040), (2, 12708020), (4, 6354010), (5, 5083208), (8, 3177005), (10, 2541604), (13, 1955080), (20, 1270802), (26, 977540), (37, 686920), (40, 635401), (52, 488770), (65, 391016), (74, 343460), (104, 244385), (130, 195508), (148, 171730), (185, 137384), (260, 97754), (296, 85865), (370, 68692), (481, 52840), (520, 48877), (740, 34346), (962, 26420), (1321, 19240), (1480, 17173), (1924, 13210), (2405, 10568), (2642, 9620), (3848, 6605), (4810, 5284)]