18778830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 51867648

約数和(自身を除く): 33088818

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 401, 446, 669, 802, 1115, 1203, 1338, 1561, 2005, 2230, 2406, 2807, 3122, 3345, 4010, 4683, 5614, 6015, 6690, 7805, 8421, 9366, 12030, 14035, 15610, 16842, 23415, 28070, 42105, 46830, 84210, 89423, 178846, 268269, 447115, 536538, 625961, 894230, 1251922, 1341345, 1877883, 2682690, 3129805, 3755766, 6259610, 9389415, 18778830]

約数ペア:

[(1, 18778830), (2, 9389415), (3, 6259610), (5, 3755766), (6, 3129805), (7, 2682690), (10, 1877883), (14, 1341345), (15, 1251922), (21, 894230), (30, 625961), (35, 536538), (42, 447115), (70, 268269), (105, 178846), (210, 89423), (223, 84210), (401, 46830), (446, 42105), (669, 28070), (802, 23415), (1115, 16842), (1203, 15610), (1338, 14035), (1561, 12030), (2005, 9366), (2230, 8421), (2406, 7805), (2807, 6690), (3122, 6015), (3345, 5614), (4010, 4683)]