20475810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 36133470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 41, 45, 62, 82, 90, 93, 123, 155, 179, 186, 205, 246, 279, 310, 358, 369, 410, 465, 537, 558, 615, 738, 895, 930, 1074, 1230, 1271, 1395, 1611, 1790, 1845, 2542, 2685, 2790, 3222, 3690, 3813, 5370, 5549, 6355, 7339, 7626, 8055, 11098, 11439, 12710, 14678, 16110, 16647, 19065, 22017, 22878, 27745, 33294, 36695, 38130, 44034, 49941, 55490, 57195, 66051, 73390, 83235, 99882, 110085, 114390, 132102, 166470, 220170, 227509, 249705, 330255, 455018, 499410, 660510, 682527, 1137545, 1365054, 2047581, 2275090, 3412635, 4095162, 6825270, 10237905, 20475810]

約数ペア:

[(1, 20475810), (2, 10237905), (3, 6825270), (5, 4095162), (6, 3412635), (9, 2275090), (10, 2047581), (15, 1365054), (18, 1137545), (30, 682527), (31, 660510), (41, 499410), (45, 455018), (62, 330255), (82, 249705), (90, 227509), (93, 220170), (123, 166470), (155, 132102), (179, 114390), (186, 110085), (205, 99882), (246, 83235), (279, 73390), (310, 66051), (358, 57195), (369, 55490), (410, 49941), (465, 44034), (537, 38130), (558, 36695), (615, 33294), (738, 27745), (895, 22878), (930, 22017), (1074, 19065), (1230, 16647), (1271, 16110), (1395, 14678), (1611, 12710), (1790, 11439), (1845, 11098), (2542, 8055), (2685, 7626), (2790, 7339), (3222, 6355), (3690, 5549), (3813, 5370)]