20485272

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 38612328

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 23, 24, 34, 37, 46, 51, 59, 68, 69, 74, 92, 102, 111, 118, 136, 138, 148, 177, 184, 204, 222, 236, 276, 296, 354, 391, 408, 444, 472, 552, 629, 708, 782, 851, 888, 1003, 1173, 1258, 1357, 1416, 1564, 1702, 1887, 2006, 2183, 2346, 2516, 2553, 2714, 3009, 3128, 3404, 3774, 4012, 4071, 4366, 4692, 5032, 5106, 5428, 6018, 6549, 6808, 7548, 8024, 8142, 8732, 9384, 10212, 10856, 12036, 13098, 14467, 15096, 16284, 17464, 20424, 23069, 24072, 26196, 28934, 32568, 37111, 43401, 46138, 50209, 52392, 57868, 69207, 74222, 86802, 92276, 100418, 111333, 115736, 138414, 148444, 150627, 173604, 184552, 200836, 222666, 276828, 296888, 301254, 347208, 401672, 445332, 553656, 602508, 853553, 890664, 1205016, 1707106, 2560659, 3414212, 5121318, 6828424, 10242636, 20485272]

約数ペア:

[(1, 20485272), (2, 10242636), (3, 6828424), (4, 5121318), (6, 3414212), (8, 2560659), (12, 1707106), (17, 1205016), (23, 890664), (24, 853553), (34, 602508), (37, 553656), (46, 445332), (51, 401672), (59, 347208), (68, 301254), (69, 296888), (74, 276828), (92, 222666), (102, 200836), (111, 184552), (118, 173604), (136, 150627), (138, 148444), (148, 138414), (177, 115736), (184, 111333), (204, 100418), (222, 92276), (236, 86802), (276, 74222), (296, 69207), (354, 57868), (391, 52392), (408, 50209), (444, 46138), (472, 43401), (552, 37111), (629, 32568), (708, 28934), (782, 26196), (851, 24072), (888, 23069), (1003, 20424), (1173, 17464), (1258, 16284), (1357, 15096), (1416, 14467), (1564, 13098), (1702, 12036), (1887, 10856), (2006, 10212), (2183, 9384), (2346, 8732), (2516, 8142), (2553, 8024), (2714, 7548), (3009, 6808), (3128, 6549), (3404, 6018), (3774, 5428), (4012, 5106), (4071, 5032), (4366, 4692)]