9904375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:109

約数の個数: 40

約数和(自身を含む): 14170464

約数和(自身を除く): 4266089

約数列:

[1, 5, 13, 23, 25, 53, 65, 115, 125, 265, 299, 325, 575, 625, 689, 1219, 1325, 1495, 1625, 2875, 3445, 6095, 6625, 7475, 8125, 14375, 15847, 17225, 30475, 33125, 37375, 79235, 86125, 152375, 186875, 396175, 430625, 761875, 1980875, 9904375]

約数ペア:

[(1, 9904375), (5, 1980875), (13, 761875), (23, 430625), (25, 396175), (53, 186875), (65, 152375), (115, 86125), (125, 79235), (265, 37375), (299, 33125), (325, 30475), (575, 17225), (625, 15847), (689, 14375), (1219, 8125), (1325, 7475), (1495, 6625), (1625, 6095), (2875, 3445)]