215490828

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{4639}}^1$

素因数の和:4739

約数の個数: 72

約数和(自身を含む): 592435200

約数和(自身を除く): 376944372

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 79, 84, 98, 147, 158, 196, 237, 294, 316, 474, 553, 588, 948, 1106, 1659, 2212, 3318, 3871, 4639, 6636, 7742, 9278, 11613, 13917, 15484, 18556, 23226, 27834, 32473, 46452, 55668, 64946, 97419, 129892, 194838, 227311, 366481, 389676, 454622, 681933, 732962, 909244, 1099443, 1363866, 1465924, 2198886, 2565367, 2727732, 4397772, 5130734, 7696101, 10261468, 15392202, 17957569, 30784404, 35915138, 53872707, 71830276, 107745414, 215490828]

約数ペア:

[(1, 215490828), (2, 107745414), (3, 71830276), (4, 53872707), (6, 35915138), (7, 30784404), (12, 17957569), (14, 15392202), (21, 10261468), (28, 7696101), (42, 5130734), (49, 4397772), (79, 2727732), (84, 2565367), (98, 2198886), (147, 1465924), (158, 1363866), (196, 1099443), (237, 909244), (294, 732962), (316, 681933), (474, 454622), (553, 389676), (588, 366481), (948, 227311), (1106, 194838), (1659, 129892), (2212, 97419), (3318, 64946), (3871, 55668), (4639, 46452), (6636, 32473), (7742, 27834), (9278, 23226), (11613, 18556), (13917, 15484)]