655129720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{80681}}^1$

素因数の和:80728

約数の個数: 64

約数和(自身を含む): 1742731200

約数和(自身を除く): 1087601480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 80681, 161362, 322724, 403405, 564767, 645448, 806810, 1129534, 1613620, 2259068, 2339749, 2823835, 3227240, 4518136, 4679498, 5647670, 9358996, 11295340, 11698745, 16378243, 18717992, 22590680, 23397490, 32756486, 46794980, 65512972, 81891215, 93589960, 131025944, 163782430, 327564860, 655129720]

約数ペア:

[(1, 655129720), (2, 327564860), (4, 163782430), (5, 131025944), (7, 93589960), (8, 81891215), (10, 65512972), (14, 46794980), (20, 32756486), (28, 23397490), (29, 22590680), (35, 18717992), (40, 16378243), (56, 11698745), (58, 11295340), (70, 9358996), (116, 5647670), (140, 4679498), (145, 4518136), (203, 3227240), (232, 2823835), (280, 2339749), (290, 2259068), (406, 1613620), (580, 1129534), (812, 806810), (1015, 645448), (1160, 564767), (1624, 403405), (2030, 322724), (4060, 161362), (8120, 80681)]