1670708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 36

約数和(自身を含む): 3360420

約数和(自身を除く): 1689712

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 89, 178, 247, 356, 361, 494, 722, 988, 1157, 1444, 1691, 2314, 3382, 4628, 4693, 6764, 9386, 18772, 21983, 32129, 43966, 64258, 87932, 128516, 417677, 835354, 1670708]

約数ペア:

[(1, 1670708), (2, 835354), (4, 417677), (13, 128516), (19, 87932), (26, 64258), (38, 43966), (52, 32129), (76, 21983), (89, 18772), (178, 9386), (247, 6764), (356, 4693), (361, 4628), (494, 3382), (722, 2314), (988, 1691), (1157, 1444)]