20197975518

素因数分解:

$2^1\times 3^2\times 7^4\times {\mathrm{263}}^1\times {\mathrm{1777}}^1$

素因数の和:2076

約数の個数: 120

約数和(自身を含む): 51275912688

約数和(自身を除く): 31077937170

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 263, 294, 343, 441, 526, 686, 789, 882, 1029, 1578, 1777, 1841, 2058, 2367, 2401, 3087, 3554, 3682, 4734, 4802, 5331, 5523, 6174, 7203, 10662, 11046, 12439, 12887, 14406, 15993, 16569, 21609, 24878, 25774, 31986, 33138, 37317, 38661, 43218, 74634, 77322, 87073, 90209, 111951, 115983, 174146, 180418, 223902, 231966, 261219, 270627, 467351, 522438, 541254, 609511, 631463, 783657, 811881, 934702, 1219022, 1262926, 1402053, 1567314, 1623762, 1828533, 1894389, 2804106, 3271457, 3657066, 3788778, 4206159, 4266577, 5485599, 5683167, 6542914, 8412318, 8533154, 9814371, 10971198, 11366334, 12799731, 19628742, 22900199, 25599462, 29443113, 38399193, 45800398, 58886226, 68700597, 76798386, 137401194, 160301393, 206101791, 320602786, 412203582, 480904179, 961808358, 1122109751, 1442712537, 2244219502, 2885425074, 3366329253, 6732658506, 10098987759, 20197975518]

約数ペア:

[(1, 20197975518), (2, 10098987759), (3, 6732658506), (6, 3366329253), (7, 2885425074), (9, 2244219502), (14, 1442712537), (18, 1122109751), (21, 961808358), (42, 480904179), (49, 412203582), (63, 320602786), (98, 206101791), (126, 160301393), (147, 137401194), (263, 76798386), (294, 68700597), (343, 58886226), (441, 45800398), (526, 38399193), (686, 29443113), (789, 25599462), (882, 22900199), (1029, 19628742), (1578, 12799731), (1777, 11366334), (1841, 10971198), (2058, 9814371), (2367, 8533154), (2401, 8412318), (3087, 6542914), (3554, 5683167), (3682, 5485599), (4734, 4266577), (4802, 4206159), (5331, 3788778), (5523, 3657066), (6174, 3271457), (7203, 2804106), (10662, 1894389), (11046, 1828533), (12439, 1623762), (12887, 1567314), (14406, 1402053), (15993, 1262926), (16569, 1219022), (21609, 934702), (24878, 811881), (25774, 783657), (31986, 631463), (33138, 609511), (37317, 541254), (38661, 522438), (43218, 467351), (74634, 270627), (77322, 261219), (87073, 231966), (90209, 223902), (111951, 180418), (115983, 174146)]