19972010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1$

素因数の和:1226

約数の個数: 32

約数和(自身を含む): 37832400

約数和(自身を除く): 17860390

約数列:

[1, 2, 5, 10, 29, 58, 61, 122, 145, 290, 305, 610, 1129, 1769, 2258, 3538, 5645, 8845, 11290, 17690, 32741, 65482, 68869, 137738, 163705, 327410, 344345, 688690, 1997201, 3994402, 9986005, 19972010]

約数ペア:

[(1, 19972010), (2, 9986005), (5, 3994402), (10, 1997201), (29, 688690), (58, 344345), (61, 327410), (122, 163705), (145, 137738), (290, 68869), (305, 65482), (610, 32741), (1129, 17690), (1769, 11290), (2258, 8845), (3538, 5645)]