81680820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 192

約数和(自身を含む): 267563520

約数和(自身を除く): 185882700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 29, 30, 39, 46, 52, 58, 60, 65, 69, 78, 87, 92, 115, 116, 130, 138, 145, 156, 157, 174, 195, 230, 260, 276, 290, 299, 314, 345, 348, 377, 390, 435, 460, 471, 580, 598, 628, 667, 690, 754, 780, 785, 870, 897, 942, 1131, 1196, 1334, 1380, 1495, 1508, 1570, 1740, 1794, 1884, 1885, 2001, 2041, 2262, 2355, 2668, 2990, 3140, 3335, 3588, 3611, 3770, 4002, 4082, 4485, 4524, 4553, 4710, 5655, 5980, 6123, 6670, 7222, 7540, 8004, 8164, 8671, 8970, 9106, 9420, 10005, 10205, 10833, 11310, 12246, 13340, 13659, 14444, 17342, 17940, 18055, 18212, 20010, 20410, 21666, 22620, 22765, 24492, 26013, 27318, 30615, 34684, 36110, 40020, 40820, 43332, 43355, 45530, 46943, 52026, 54165, 54636, 59189, 61230, 68295, 72220, 86710, 91060, 93886, 104052, 104719, 108330, 118378, 122460, 130065, 136590, 140829, 173420, 177567, 187772, 209438, 216660, 234715, 236756, 260130, 273180, 281658, 295945, 314157, 355134, 418876, 469430, 520260, 523595, 563316, 591890, 628314, 704145, 710268, 887835, 938860, 1047190, 1183780, 1256628, 1361347, 1408290, 1570785, 1775670, 2094380, 2722694, 2816580, 3141570, 3551340, 4084041, 5445388, 6283140, 6806735, 8168082, 13613470, 16336164, 20420205, 27226940, 40840410, 81680820]

約数ペア:

[(1, 81680820), (2, 40840410), (3, 27226940), (4, 20420205), (5, 16336164), (6, 13613470), (10, 8168082), (12, 6806735), (13, 6283140), (15, 5445388), (20, 4084041), (23, 3551340), (26, 3141570), (29, 2816580), (30, 2722694), (39, 2094380), (46, 1775670), (52, 1570785), (58, 1408290), (60, 1361347), (65, 1256628), (69, 1183780), (78, 1047190), (87, 938860), (92, 887835), (115, 710268), (116, 704145), (130, 628314), (138, 591890), (145, 563316), (156, 523595), (157, 520260), (174, 469430), (195, 418876), (230, 355134), (260, 314157), (276, 295945), (290, 281658), (299, 273180), (314, 260130), (345, 236756), (348, 234715), (377, 216660), (390, 209438), (435, 187772), (460, 177567), (471, 173420), (580, 140829), (598, 136590), (628, 130065), (667, 122460), (690, 118378), (754, 108330), (780, 104719), (785, 104052), (870, 93886), (897, 91060), (942, 86710), (1131, 72220), (1196, 68295), (1334, 61230), (1380, 59189), (1495, 54636), (1508, 54165), (1570, 52026), (1740, 46943), (1794, 45530), (1884, 43355), (1885, 43332), (2001, 40820), (2041, 40020), (2262, 36110), (2355, 34684), (2668, 30615), (2990, 27318), (3140, 26013), (3335, 24492), (3588, 22765), (3611, 22620), (3770, 21666), (4002, 20410), (4082, 20010), (4485, 18212), (4524, 18055), (4553, 17940), (4710, 17342), (5655, 14444), (5980, 13659), (6123, 13340), (6670, 12246), (7222, 11310), (7540, 10833), (8004, 10205), (8164, 10005), (8671, 9420), (8970, 9106)]