399100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:334

約数の個数: 36

約数和(自身を含む): 935704

約数和(自身を除く): 536604

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 307, 325, 614, 650, 1228, 1300, 1535, 3070, 3991, 6140, 7675, 7982, 15350, 15964, 19955, 30700, 39910, 79820, 99775, 199550, 399100]

約数ペア:

[(1, 399100), (2, 199550), (4, 99775), (5, 79820), (10, 39910), (13, 30700), (20, 19955), (25, 15964), (26, 15350), (50, 7982), (52, 7675), (65, 6140), (100, 3991), (130, 3070), (260, 1535), (307, 1300), (325, 1228), (614, 650)]