18978420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{4721}}^1$

素因数の和:4800

約数の個数: 48

約数和(自身を含む): 53944128

約数和(自身を除く): 34965708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 4721, 9442, 14163, 18884, 23605, 28326, 47210, 56652, 70815, 94420, 141630, 283260, 316307, 632614, 948921, 1265228, 1581535, 1897842, 3163070, 3795684, 4744605, 6326140, 9489210, 18978420]

約数ペア:

[(1, 18978420), (2, 9489210), (3, 6326140), (4, 4744605), (5, 3795684), (6, 3163070), (10, 1897842), (12, 1581535), (15, 1265228), (20, 948921), (30, 632614), (60, 316307), (67, 283260), (134, 141630), (201, 94420), (268, 70815), (335, 56652), (402, 47210), (670, 28326), (804, 23605), (1005, 18884), (1340, 14163), (2010, 9442), (4020, 4721)]