168590920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 419904000

約数和(自身を除く): 251313080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 71, 89, 92, 115, 116, 142, 145, 178, 184, 230, 232, 284, 290, 355, 356, 445, 460, 568, 580, 667, 710, 712, 890, 920, 1160, 1334, 1420, 1633, 1780, 2047, 2059, 2581, 2668, 2840, 3266, 3335, 3560, 4094, 4118, 5162, 5336, 6319, 6532, 6670, 8165, 8188, 8236, 10235, 10295, 10324, 12638, 12905, 13064, 13340, 16330, 16376, 16472, 20470, 20590, 20648, 25276, 25810, 26680, 31595, 32660, 40940, 41180, 47357, 50552, 51620, 59363, 63190, 65320, 81880, 82360, 94714, 103240, 118726, 126380, 145337, 183251, 189428, 236785, 237452, 252760, 290674, 296815, 366502, 378856, 473570, 474904, 581348, 593630, 726685, 733004, 916255, 947140, 1162696, 1187260, 1453370, 1466008, 1832510, 1894280, 2374520, 2906740, 3665020, 4214773, 5813480, 7330040, 8429546, 16859092, 21073865, 33718184, 42147730, 84295460, 168590920]

約数ペア:

[(1, 168590920), (2, 84295460), (4, 42147730), (5, 33718184), (8, 21073865), (10, 16859092), (20, 8429546), (23, 7330040), (29, 5813480), (40, 4214773), (46, 3665020), (58, 2906740), (71, 2374520), (89, 1894280), (92, 1832510), (115, 1466008), (116, 1453370), (142, 1187260), (145, 1162696), (178, 947140), (184, 916255), (230, 733004), (232, 726685), (284, 593630), (290, 581348), (355, 474904), (356, 473570), (445, 378856), (460, 366502), (568, 296815), (580, 290674), (667, 252760), (710, 237452), (712, 236785), (890, 189428), (920, 183251), (1160, 145337), (1334, 126380), (1420, 118726), (1633, 103240), (1780, 94714), (2047, 82360), (2059, 81880), (2581, 65320), (2668, 63190), (2840, 59363), (3266, 51620), (3335, 50552), (3560, 47357), (4094, 41180), (4118, 40940), (5162, 32660), (5336, 31595), (6319, 26680), (6532, 25810), (6670, 25276), (8165, 20648), (8188, 20590), (8236, 20470), (10235, 16472), (10295, 16376), (10324, 16330), (12638, 13340), (12905, 13064)]