78780308

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:744

約数の個数: 36

約数和(自身を含む): 147378420

約数和(自身を除く): 68598112

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 356, 361, 613, 722, 1226, 1444, 1691, 2452, 3382, 6764, 11647, 23294, 32129, 46588, 54557, 64258, 109114, 128516, 218228, 221293, 442586, 885172, 1036583, 2073166, 4146332, 19695077, 39390154, 78780308]

約数ペア:

[(1, 78780308), (2, 39390154), (4, 19695077), (19, 4146332), (38, 2073166), (76, 1036583), (89, 885172), (178, 442586), (356, 221293), (361, 218228), (613, 128516), (722, 109114), (1226, 64258), (1444, 54557), (1691, 46588), (2452, 32129), (3382, 23294), (6764, 11647)]