18216870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 32102490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 389, 446, 669, 778, 1115, 1167, 1338, 1561, 1945, 2230, 2334, 2723, 3122, 3345, 3890, 4683, 5446, 5835, 6690, 7805, 8169, 9366, 11670, 13615, 15610, 16338, 23415, 27230, 40845, 46830, 81690, 86747, 173494, 260241, 433735, 520482, 607229, 867470, 1214458, 1301205, 1821687, 2602410, 3036145, 3643374, 6072290, 9108435, 18216870]

約数ペア:

[(1, 18216870), (2, 9108435), (3, 6072290), (5, 3643374), (6, 3036145), (7, 2602410), (10, 1821687), (14, 1301205), (15, 1214458), (21, 867470), (30, 607229), (35, 520482), (42, 433735), (70, 260241), (105, 173494), (210, 86747), (223, 81690), (389, 46830), (446, 40845), (669, 27230), (778, 23415), (1115, 16338), (1167, 15610), (1338, 13615), (1561, 11670), (1945, 9366), (2230, 8169), (2334, 7805), (2723, 6690), (3122, 5835), (3345, 5446), (3890, 4683)]