18954530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 41568768

約数和(自身を除く): 22614238

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 61, 70, 115, 122, 161, 193, 230, 305, 322, 386, 427, 610, 805, 854, 965, 1351, 1403, 1610, 1930, 2135, 2702, 2806, 4270, 4439, 6755, 7015, 8878, 9821, 11773, 13510, 14030, 19642, 22195, 23546, 31073, 44390, 49105, 58865, 62146, 82411, 98210, 117730, 155365, 164822, 270779, 310730, 412055, 541558, 824110, 1353895, 1895453, 2707790, 3790906, 9477265, 18954530]

約数ペア:

[(1, 18954530), (2, 9477265), (5, 3790906), (7, 2707790), (10, 1895453), (14, 1353895), (23, 824110), (35, 541558), (46, 412055), (61, 310730), (70, 270779), (115, 164822), (122, 155365), (161, 117730), (193, 98210), (230, 82411), (305, 62146), (322, 58865), (386, 49105), (427, 44390), (610, 31073), (805, 23546), (854, 22195), (965, 19642), (1351, 14030), (1403, 13510), (1610, 11773), (1930, 9821), (2135, 8878), (2702, 7015), (2806, 6755), (4270, 4439)]