18744990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1385

約数の個数: 64

約数和(自身を含む): 50257152

約数和(自身を除く): 31512162

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 43, 55, 66, 86, 110, 129, 165, 215, 258, 330, 430, 473, 645, 946, 1290, 1321, 1419, 2365, 2642, 2838, 3963, 4730, 6605, 7095, 7926, 13210, 14190, 14531, 19815, 29062, 39630, 43593, 56803, 72655, 87186, 113606, 145310, 170409, 217965, 284015, 340818, 435930, 568030, 624833, 852045, 1249666, 1704090, 1874499, 3124165, 3748998, 6248330, 9372495, 18744990]

約数ペア:

[(1, 18744990), (2, 9372495), (3, 6248330), (5, 3748998), (6, 3124165), (10, 1874499), (11, 1704090), (15, 1249666), (22, 852045), (30, 624833), (33, 568030), (43, 435930), (55, 340818), (66, 284015), (86, 217965), (110, 170409), (129, 145310), (165, 113606), (215, 87186), (258, 72655), (330, 56803), (430, 43593), (473, 39630), (645, 29062), (946, 19815), (1290, 14531), (1321, 14190), (1419, 13210), (2365, 7926), (2642, 7095), (2838, 6605), (3963, 4730)]