668812090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:463

約数の個数: 64

約数和(自身を含む): 1269571968

約数和(自身を除く): 600759878

約数列:

[1, 2, 5, 10, 41, 67, 82, 97, 134, 194, 205, 251, 335, 410, 485, 502, 670, 970, 1255, 2510, 2747, 3977, 5494, 6499, 7954, 10291, 12998, 13735, 16817, 19885, 20582, 24347, 27470, 32495, 33634, 39770, 48694, 51455, 64990, 84085, 102910, 121735, 168170, 243470, 266459, 532918, 689497, 998227, 1332295, 1378994, 1631249, 1996454, 2664590, 3262498, 3447485, 4991135, 6894970, 8156245, 9982270, 16312490, 66881209, 133762418, 334406045, 668812090]

約数ペア:

[(1, 668812090), (2, 334406045), (5, 133762418), (10, 66881209), (41, 16312490), (67, 9982270), (82, 8156245), (97, 6894970), (134, 4991135), (194, 3447485), (205, 3262498), (251, 2664590), (335, 1996454), (410, 1631249), (485, 1378994), (502, 1332295), (670, 998227), (970, 689497), (1255, 532918), (2510, 266459), (2747, 243470), (3977, 168170), (5494, 121735), (6499, 102910), (7954, 84085), (10291, 64990), (12998, 51455), (13735, 48694), (16817, 39770), (19885, 33634), (20582, 32495), (24347, 27470)]