19644040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1021}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 48933360

約数和(自身を除く): 29289320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1021, 1480, 1924, 2042, 2405, 3848, 4084, 4810, 5105, 8168, 9620, 10210, 13273, 19240, 20420, 26546, 37777, 40840, 53092, 66365, 75554, 106184, 132730, 151108, 188885, 265460, 302216, 377770, 491101, 530920, 755540, 982202, 1511080, 1964404, 2455505, 3928808, 4911010, 9822020, 19644040]

約数ペア:

[(1, 19644040), (2, 9822020), (4, 4911010), (5, 3928808), (8, 2455505), (10, 1964404), (13, 1511080), (20, 982202), (26, 755540), (37, 530920), (40, 491101), (52, 377770), (65, 302216), (74, 265460), (104, 188885), (130, 151108), (148, 132730), (185, 106184), (260, 75554), (296, 66365), (370, 53092), (481, 40840), (520, 37777), (740, 26546), (962, 20420), (1021, 19240), (1480, 13273), (1924, 10210), (2042, 9620), (2405, 8168), (3848, 5105), (4084, 4810)]