40649440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19543}}^1$

素因数の和:19571

約数の個数: 48

約数和(自身を含む): 103426848

約数和(自身を除く): 62777408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 19543, 39086, 78172, 97715, 156344, 195430, 254059, 312688, 390860, 508118, 625376, 781720, 1016236, 1270295, 1563440, 2032472, 2540590, 3126880, 4064944, 5081180, 8129888, 10162360, 20324720, 40649440]

約数ペア:

[(1, 40649440), (2, 20324720), (4, 10162360), (5, 8129888), (8, 5081180), (10, 4064944), (13, 3126880), (16, 2540590), (20, 2032472), (26, 1563440), (32, 1270295), (40, 1016236), (52, 781720), (65, 625376), (80, 508118), (104, 390860), (130, 312688), (160, 254059), (208, 195430), (260, 156344), (416, 97715), (520, 78172), (1040, 39086), (2080, 19543)]