12421220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{307}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 31770816

約数和(自身を除く): 19349596

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 307, 340, 476, 578, 595, 614, 1156, 1190, 1228, 1445, 1535, 2023, 2149, 2380, 2890, 3070, 4046, 4298, 5219, 5780, 6140, 8092, 8596, 10115, 10438, 10745, 20230, 20876, 21490, 26095, 36533, 40460, 42980, 52190, 73066, 88723, 104380, 146132, 177446, 182665, 354892, 365330, 443615, 621061, 730660, 887230, 1242122, 1774460, 2484244, 3105305, 6210610, 12421220]

約数ペア:

[(1, 12421220), (2, 6210610), (4, 3105305), (5, 2484244), (7, 1774460), (10, 1242122), (14, 887230), (17, 730660), (20, 621061), (28, 443615), (34, 365330), (35, 354892), (68, 182665), (70, 177446), (85, 146132), (119, 104380), (140, 88723), (170, 73066), (238, 52190), (289, 42980), (307, 40460), (340, 36533), (476, 26095), (578, 21490), (595, 20876), (614, 20230), (1156, 10745), (1190, 10438), (1228, 10115), (1445, 8596), (1535, 8092), (2023, 6140), (2149, 5780), (2380, 5219), (2890, 4298), (3070, 4046)]