20694690

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:929

約数の個数: 80

約数和(自身を含む): 57629880

約数和(自身を除く): 36935190

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 261, 270, 290, 405, 435, 522, 783, 810, 870, 881, 1305, 1566, 1762, 2349, 2610, 2643, 3915, 4405, 4698, 5286, 7830, 7929, 8810, 11745, 13215, 15858, 23490, 23787, 25549, 26430, 39645, 47574, 51098, 71361, 76647, 79290, 118935, 127745, 142722, 153294, 229941, 237870, 255490, 356805, 383235, 459882, 689823, 713610, 766470, 1149705, 1379646, 2069469, 2299410, 3449115, 4138938, 6898230, 10347345, 20694690]

約数ペア:

[(1, 20694690), (2, 10347345), (3, 6898230), (5, 4138938), (6, 3449115), (9, 2299410), (10, 2069469), (15, 1379646), (18, 1149705), (27, 766470), (29, 713610), (30, 689823), (45, 459882), (54, 383235), (58, 356805), (81, 255490), (87, 237870), (90, 229941), (135, 153294), (145, 142722), (162, 127745), (174, 118935), (261, 79290), (270, 76647), (290, 71361), (405, 51098), (435, 47574), (522, 39645), (783, 26430), (810, 25549), (870, 23787), (881, 23490), (1305, 15858), (1566, 13215), (1762, 11745), (2349, 8810), (2610, 7929), (2643, 7830), (3915, 5286), (4405, 4698)]