19625580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8387}}^1$

素因数の和:8415

約数の個数: 72

約数和(自身を含む): 64117872

約数和(自身を除く): 44492292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8387, 16774, 25161, 33548, 41935, 50322, 75483, 83870, 100644, 109031, 125805, 150966, 167740, 218062, 251610, 301932, 327093, 377415, 436124, 503220, 545155, 654186, 754830, 981279, 1090310, 1308372, 1509660, 1635465, 1962558, 2180620, 3270930, 3925116, 4906395, 6541860, 9812790, 19625580]

約数ペア:

[(1, 19625580), (2, 9812790), (3, 6541860), (4, 4906395), (5, 3925116), (6, 3270930), (9, 2180620), (10, 1962558), (12, 1635465), (13, 1509660), (15, 1308372), (18, 1090310), (20, 981279), (26, 754830), (30, 654186), (36, 545155), (39, 503220), (45, 436124), (52, 377415), (60, 327093), (65, 301932), (78, 251610), (90, 218062), (117, 167740), (130, 150966), (156, 125805), (180, 109031), (195, 100644), (234, 83870), (260, 75483), (390, 50322), (468, 41935), (585, 33548), (780, 25161), (1170, 16774), (2340, 8387)]