423504640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:886

約数の個数: 144

約数和(自身を含む): 1129072896

約数和(自身を除く): 705568256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 821, 832, 992, 1040, 1240, 1280, 1612, 1642, 1664, 1984, 2015, 2080, 2480, 3224, 3284, 3328, 3968, 4030, 4105, 4160, 4960, 6448, 6568, 7936, 8060, 8210, 8320, 9920, 10673, 12896, 13136, 16120, 16420, 16640, 19840, 21346, 25451, 25792, 26272, 32240, 32840, 39680, 42692, 50902, 51584, 52544, 53365, 64480, 65680, 85384, 101804, 103168, 105088, 106730, 127255, 128960, 131360, 170768, 203608, 210176, 213460, 254510, 257920, 262720, 330863, 341536, 407216, 426920, 509020, 515840, 525440, 661726, 683072, 814432, 853840, 1018040, 1050880, 1323452, 1366144, 1628864, 1654315, 1707680, 2036080, 2646904, 2732288, 3257728, 3308630, 3415360, 4072160, 5293808, 6515456, 6617260, 6830720, 8144320, 10587616, 13234520, 13661440, 16288640, 21175232, 26469040, 32577280, 42350464, 52938080, 84700928, 105876160, 211752320, 423504640]

約数ペア:

[(1, 423504640), (2, 211752320), (4, 105876160), (5, 84700928), (8, 52938080), (10, 42350464), (13, 32577280), (16, 26469040), (20, 21175232), (26, 16288640), (31, 13661440), (32, 13234520), (40, 10587616), (52, 8144320), (62, 6830720), (64, 6617260), (65, 6515456), (80, 5293808), (104, 4072160), (124, 3415360), (128, 3308630), (130, 3257728), (155, 2732288), (160, 2646904), (208, 2036080), (248, 1707680), (256, 1654315), (260, 1628864), (310, 1366144), (320, 1323452), (403, 1050880), (416, 1018040), (496, 853840), (520, 814432), (620, 683072), (640, 661726), (806, 525440), (821, 515840), (832, 509020), (992, 426920), (1040, 407216), (1240, 341536), (1280, 330863), (1612, 262720), (1642, 257920), (1664, 254510), (1984, 213460), (2015, 210176), (2080, 203608), (2480, 170768), (3224, 131360), (3284, 128960), (3328, 127255), (3968, 106730), (4030, 105088), (4105, 103168), (4160, 101804), (4960, 85384), (6448, 65680), (6568, 64480), (7936, 53365), (8060, 52544), (8210, 51584), (8320, 50902), (9920, 42692), (10673, 39680), (12896, 32840), (13136, 32240), (16120, 26272), (16420, 25792), (16640, 25451), (19840, 21346)]