318420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 1015560

約数和(自身を除く): 697140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 61, 87, 90, 116, 122, 145, 174, 180, 183, 244, 261, 290, 305, 348, 366, 435, 522, 549, 580, 610, 732, 870, 915, 1044, 1098, 1220, 1305, 1740, 1769, 1830, 2196, 2610, 2745, 3538, 3660, 5220, 5307, 5490, 7076, 8845, 10614, 10980, 15921, 17690, 21228, 26535, 31842, 35380, 53070, 63684, 79605, 106140, 159210, 318420]

約数ペア:

[(1, 318420), (2, 159210), (3, 106140), (4, 79605), (5, 63684), (6, 53070), (9, 35380), (10, 31842), (12, 26535), (15, 21228), (18, 17690), (20, 15921), (29, 10980), (30, 10614), (36, 8845), (45, 7076), (58, 5490), (60, 5307), (61, 5220), (87, 3660), (90, 3538), (116, 2745), (122, 2610), (145, 2196), (174, 1830), (180, 1769), (183, 1740), (244, 1305), (261, 1220), (290, 1098), (305, 1044), (348, 915), (366, 870), (435, 732), (522, 610), (549, 580)]