21530760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 69984000

約数和(自身を除く): 48453240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 269, 276, 290, 345, 348, 435, 460, 538, 552, 580, 667, 690, 696, 807, 870, 920, 1076, 1160, 1334, 1345, 1380, 1614, 1740, 2001, 2152, 2668, 2690, 2760, 3228, 3335, 3480, 4002, 4035, 5336, 5380, 6187, 6456, 6670, 7801, 8004, 8070, 10005, 10760, 12374, 13340, 15602, 16008, 16140, 18561, 20010, 23403, 24748, 26680, 30935, 31204, 32280, 37122, 39005, 40020, 46806, 49496, 61870, 62408, 74244, 78010, 80040, 92805, 93612, 117015, 123740, 148488, 156020, 179423, 185610, 187224, 234030, 247480, 312040, 358846, 371220, 468060, 538269, 717692, 742440, 897115, 936120, 1076538, 1435384, 1794230, 2153076, 2691345, 3588460, 4306152, 5382690, 7176920, 10765380, 21530760]

約数ペア:

[(1, 21530760), (2, 10765380), (3, 7176920), (4, 5382690), (5, 4306152), (6, 3588460), (8, 2691345), (10, 2153076), (12, 1794230), (15, 1435384), (20, 1076538), (23, 936120), (24, 897115), (29, 742440), (30, 717692), (40, 538269), (46, 468060), (58, 371220), (60, 358846), (69, 312040), (87, 247480), (92, 234030), (115, 187224), (116, 185610), (120, 179423), (138, 156020), (145, 148488), (174, 123740), (184, 117015), (230, 93612), (232, 92805), (269, 80040), (276, 78010), (290, 74244), (345, 62408), (348, 61870), (435, 49496), (460, 46806), (538, 40020), (552, 39005), (580, 37122), (667, 32280), (690, 31204), (696, 30935), (807, 26680), (870, 24748), (920, 23403), (1076, 20010), (1160, 18561), (1334, 16140), (1345, 16008), (1380, 15602), (1614, 13340), (1740, 12374), (2001, 10760), (2152, 10005), (2668, 8070), (2690, 8004), (2760, 7801), (3228, 6670), (3335, 6456), (3480, 6187), (4002, 5380), (4035, 5336)]