31906960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:868

約数の個数: 80

約数和(自身を含む): 81356400

約数和(自身を除く): 49449440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 809, 986, 1160, 1360, 1618, 1972, 2320, 2465, 3236, 3944, 4045, 4930, 6472, 7888, 8090, 9860, 12944, 13753, 16180, 19720, 23461, 27506, 32360, 39440, 46922, 55012, 64720, 68765, 93844, 110024, 117305, 137530, 187688, 220048, 234610, 275060, 375376, 398837, 469220, 550120, 797674, 938440, 1100240, 1595348, 1876880, 1994185, 3190696, 3988370, 6381392, 7976740, 15953480, 31906960]

約数ペア:

[(1, 31906960), (2, 15953480), (4, 7976740), (5, 6381392), (8, 3988370), (10, 3190696), (16, 1994185), (17, 1876880), (20, 1595348), (29, 1100240), (34, 938440), (40, 797674), (58, 550120), (68, 469220), (80, 398837), (85, 375376), (116, 275060), (136, 234610), (145, 220048), (170, 187688), (232, 137530), (272, 117305), (290, 110024), (340, 93844), (464, 68765), (493, 64720), (580, 55012), (680, 46922), (809, 39440), (986, 32360), (1160, 27506), (1360, 23461), (1618, 19720), (1972, 16180), (2320, 13753), (2465, 12944), (3236, 9860), (3944, 8090), (4045, 7888), (4930, 6472)]