20769580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 30710996

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 37, 52, 65, 68, 74, 85, 127, 130, 148, 170, 185, 221, 254, 260, 340, 370, 442, 481, 508, 629, 635, 740, 884, 962, 1105, 1258, 1270, 1651, 1924, 2159, 2210, 2405, 2516, 2540, 3145, 3302, 4318, 4420, 4699, 4810, 6290, 6604, 8177, 8255, 8636, 9398, 9620, 10795, 12580, 16354, 16510, 18796, 21590, 23495, 28067, 32708, 33020, 40885, 43180, 46990, 56134, 61087, 79883, 81770, 93980, 112268, 122174, 140335, 159766, 163540, 244348, 280670, 305435, 319532, 399415, 561340, 610870, 798830, 1038479, 1221740, 1597660, 2076958, 4153916, 5192395, 10384790, 20769580]

約数ペア:

[(1, 20769580), (2, 10384790), (4, 5192395), (5, 4153916), (10, 2076958), (13, 1597660), (17, 1221740), (20, 1038479), (26, 798830), (34, 610870), (37, 561340), (52, 399415), (65, 319532), (68, 305435), (74, 280670), (85, 244348), (127, 163540), (130, 159766), (148, 140335), (170, 122174), (185, 112268), (221, 93980), (254, 81770), (260, 79883), (340, 61087), (370, 56134), (442, 46990), (481, 43180), (508, 40885), (629, 33020), (635, 32708), (740, 28067), (884, 23495), (962, 21590), (1105, 18796), (1258, 16510), (1270, 16354), (1651, 12580), (1924, 10795), (2159, 9620), (2210, 9398), (2405, 8636), (2516, 8255), (2540, 8177), (3145, 6604), (3302, 6290), (4318, 4810), (4420, 4699)]