20767620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 61689600

約数和(自身を除く): 40921980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 101, 115, 138, 149, 202, 230, 276, 298, 303, 345, 404, 447, 460, 505, 596, 606, 690, 745, 894, 1010, 1212, 1380, 1490, 1515, 1788, 2020, 2235, 2323, 2980, 3030, 3427, 4470, 4646, 6060, 6854, 6969, 8940, 9292, 10281, 11615, 13708, 13938, 15049, 17135, 20562, 23230, 27876, 30098, 34270, 34845, 41124, 45147, 46460, 51405, 60196, 68540, 69690, 75245, 90294, 102810, 139380, 150490, 180588, 205620, 225735, 300980, 346127, 451470, 692254, 902940, 1038381, 1384508, 1730635, 2076762, 3461270, 4153524, 5191905, 6922540, 10383810, 20767620]

約数ペア:

[(1, 20767620), (2, 10383810), (3, 6922540), (4, 5191905), (5, 4153524), (6, 3461270), (10, 2076762), (12, 1730635), (15, 1384508), (20, 1038381), (23, 902940), (30, 692254), (46, 451470), (60, 346127), (69, 300980), (92, 225735), (101, 205620), (115, 180588), (138, 150490), (149, 139380), (202, 102810), (230, 90294), (276, 75245), (298, 69690), (303, 68540), (345, 60196), (404, 51405), (447, 46460), (460, 45147), (505, 41124), (596, 34845), (606, 34270), (690, 30098), (745, 27876), (894, 23230), (1010, 20562), (1212, 17135), (1380, 15049), (1490, 13938), (1515, 13708), (1788, 11615), (2020, 10281), (2235, 9292), (2323, 8940), (2980, 6969), (3030, 6854), (3427, 6060), (4470, 4646)]