39880880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1237}}^1$

素因数の和:1294

約数の個数: 80

約数和(自身を含む): 103160064

約数和(自身を除く): 63279184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1237, 1240, 1612, 2015, 2474, 2480, 3224, 4030, 4948, 6185, 6448, 8060, 9896, 12370, 16081, 16120, 19792, 24740, 32162, 32240, 38347, 49480, 64324, 76694, 80405, 98960, 128648, 153388, 160810, 191735, 257296, 306776, 321620, 383470, 498511, 613552, 643240, 766940, 997022, 1286480, 1533880, 1994044, 2492555, 3067760, 3988088, 4985110, 7976176, 9970220, 19940440, 39880880]

約数ペア:

[(1, 39880880), (2, 19940440), (4, 9970220), (5, 7976176), (8, 4985110), (10, 3988088), (13, 3067760), (16, 2492555), (20, 1994044), (26, 1533880), (31, 1286480), (40, 997022), (52, 766940), (62, 643240), (65, 613552), (80, 498511), (104, 383470), (124, 321620), (130, 306776), (155, 257296), (208, 191735), (248, 160810), (260, 153388), (310, 128648), (403, 98960), (496, 80405), (520, 76694), (620, 64324), (806, 49480), (1040, 38347), (1237, 32240), (1240, 32162), (1612, 24740), (2015, 19792), (2474, 16120), (2480, 16081), (3224, 12370), (4030, 9896), (4948, 8060), (6185, 6448)]