20741670

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{883}}^1$

素因数の和:931

約数の個数: 80

約数和(自身を含む): 57760560

約数和(自身を除く): 37018890

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, 883, 1305, 1566, 1766, 2349, 2610, 2649, 3915, 4415, 4698, 5298, 7830, 7947, 8830, 11745, 13245, 15894, 23490, 23841, 25607, 26490, 39735, 47682, 51214, 71523, 76821, 79470, 119205, 128035, 143046, 153642, 230463, 238410, 256070, 357615, 384105, 460926, 691389, 715230, 768210, 1152315, 1382778, 2074167, 2304630, 3456945, 4148334, 6913890, 10370835, 20741670]

約数ペア:

[(1, 20741670), (2, 10370835), (3, 6913890), (5, 4148334), (6, 3456945), (9, 2304630), (10, 2074167), (15, 1382778), (18, 1152315), (27, 768210), (29, 715230), (30, 691389), (45, 460926), (54, 384105), (58, 357615), (81, 256070), (87, 238410), (90, 230463), (135, 153642), (145, 143046), (162, 128035), (174, 119205), (261, 79470), (270, 76821), (290, 71523), (405, 51214), (435, 47682), (522, 39735), (783, 26490), (810, 25607), (870, 23841), (883, 23490), (1305, 15894), (1566, 13245), (1766, 11745), (2349, 8830), (2610, 7947), (2649, 7830), (3915, 5298), (4415, 4698)]