645801982

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{78317}}^1$

素因数の和:78376

約数の個数: 32

約数和(自身を含む): 1202964480

約数和(自身を除く): 557162498

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 4123, 8246, 78317, 156634, 548219, 1096438, 1488023, 2427827, 2976046, 4855654, 10416161, 16994789, 20832322, 33989578, 46128713, 92257426, 322900991, 645801982]

約数ペア:

[(1, 645801982), (2, 322900991), (7, 92257426), (14, 46128713), (19, 33989578), (31, 20832322), (38, 16994789), (62, 10416161), (133, 4855654), (217, 2976046), (266, 2427827), (434, 1488023), (589, 1096438), (1178, 548219), (4123, 156634), (8246, 78317)]