86765900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1$

素因数の和:2211

約数の個数: 72

約数和(自身を含む): 209403264

約数和(自身を除く): 122637364

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 2153, 3100, 4030, 4306, 8060, 8612, 10075, 10765, 20150, 21530, 27989, 40300, 43060, 53825, 55978, 66743, 107650, 111956, 133486, 139945, 215300, 266972, 279890, 333715, 559780, 667430, 699725, 867659, 1334860, 1399450, 1668575, 1735318, 2798900, 3337150, 3470636, 4338295, 6674300, 8676590, 17353180, 21691475, 43382950, 86765900]

約数ペア:

[(1, 86765900), (2, 43382950), (4, 21691475), (5, 17353180), (10, 8676590), (13, 6674300), (20, 4338295), (25, 3470636), (26, 3337150), (31, 2798900), (50, 1735318), (52, 1668575), (62, 1399450), (65, 1334860), (100, 867659), (124, 699725), (130, 667430), (155, 559780), (260, 333715), (310, 279890), (325, 266972), (403, 215300), (620, 139945), (650, 133486), (775, 111956), (806, 107650), (1300, 66743), (1550, 55978), (1612, 53825), (2015, 43060), (2153, 40300), (3100, 27989), (4030, 21530), (4306, 20150), (8060, 10765), (8612, 10075)]