71660680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19687}}^1$

素因数の和:19718

約数の個数: 64

約数和(自身を含む): 198455040

約数和(自身を除く): 126794360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 19687, 39374, 78748, 98435, 137809, 157496, 196870, 255931, 275618, 393740, 511862, 551236, 689045, 787480, 1023724, 1102472, 1279655, 1378090, 1791517, 2047448, 2559310, 2756180, 3583034, 5118620, 5512360, 7166068, 8957585, 10237240, 14332136, 17915170, 35830340, 71660680]

約数ペア:

[(1, 71660680), (2, 35830340), (4, 17915170), (5, 14332136), (7, 10237240), (8, 8957585), (10, 7166068), (13, 5512360), (14, 5118620), (20, 3583034), (26, 2756180), (28, 2559310), (35, 2047448), (40, 1791517), (52, 1378090), (56, 1279655), (65, 1102472), (70, 1023724), (91, 787480), (104, 689045), (130, 551236), (140, 511862), (182, 393740), (260, 275618), (280, 255931), (364, 196870), (455, 157496), (520, 137809), (728, 98435), (910, 78748), (1820, 39374), (3640, 19687)]