68442580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 147159936

約数和(自身を除く): 78717356

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 157, 284, 307, 314, 355, 614, 628, 710, 785, 1228, 1420, 1535, 1570, 3070, 3140, 6140, 11147, 21797, 22294, 43594, 44588, 48199, 55735, 87188, 96398, 108985, 111470, 192796, 217970, 222940, 240995, 435940, 481990, 963980, 3422129, 6844258, 13688516, 17110645, 34221290, 68442580]

約数ペア:

[(1, 68442580), (2, 34221290), (4, 17110645), (5, 13688516), (10, 6844258), (20, 3422129), (71, 963980), (142, 481990), (157, 435940), (284, 240995), (307, 222940), (314, 217970), (355, 192796), (614, 111470), (628, 108985), (710, 96398), (785, 87188), (1228, 55735), (1420, 48199), (1535, 44588), (1570, 43594), (3070, 22294), (3140, 21797), (6140, 11147)]