1645450844

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{4999}}^1$

素因数の和:5154

約数の個数: 48

約数和(自身を含む): 3124800000

約数和(自身を除く): 1479349156

約数列:

[1, 2, 4, 19, 38, 61, 71, 76, 122, 142, 244, 284, 1159, 1349, 2318, 2698, 4331, 4636, 4999, 5396, 8662, 9998, 17324, 19996, 82289, 94981, 164578, 189962, 304939, 329156, 354929, 379924, 609878, 709858, 1219756, 1419716, 5793841, 6743651, 11587682, 13487302, 21650669, 23175364, 26974604, 43301338, 86602676, 411362711, 822725422, 1645450844]

約数ペア:

[(1, 1645450844), (2, 822725422), (4, 411362711), (19, 86602676), (38, 43301338), (61, 26974604), (71, 23175364), (76, 21650669), (122, 13487302), (142, 11587682), (244, 6743651), (284, 5793841), (1159, 1419716), (1349, 1219756), (2318, 709858), (2698, 609878), (4331, 379924), (4636, 354929), (4999, 329156), (5396, 304939), (8662, 189962), (9998, 164578), (17324, 94981), (19996, 82289)]