129658750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 267664320

約数和(自身を除く): 138005570

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 101, 125, 130, 158, 202, 250, 325, 395, 505, 625, 650, 790, 1010, 1027, 1250, 1313, 1625, 1975, 2054, 2525, 2626, 3250, 3950, 5050, 5135, 6565, 7979, 8125, 9875, 10270, 12625, 13130, 15958, 16250, 19750, 25250, 25675, 32825, 39895, 49375, 51350, 63125, 65650, 79790, 98750, 103727, 126250, 128375, 164125, 199475, 207454, 256750, 328250, 398950, 518635, 641875, 820625, 997375, 1037270, 1283750, 1641250, 1994750, 2593175, 4986875, 5186350, 9973750, 12965875, 25931750, 64829375, 129658750]

約数ペア:

[(1, 129658750), (2, 64829375), (5, 25931750), (10, 12965875), (13, 9973750), (25, 5186350), (26, 4986875), (50, 2593175), (65, 1994750), (79, 1641250), (101, 1283750), (125, 1037270), (130, 997375), (158, 820625), (202, 641875), (250, 518635), (325, 398950), (395, 328250), (505, 256750), (625, 207454), (650, 199475), (790, 164125), (1010, 128375), (1027, 126250), (1250, 103727), (1313, 98750), (1625, 79790), (1975, 65650), (2054, 63125), (2525, 51350), (2626, 49375), (3250, 39895), (3950, 32825), (5050, 25675), (5135, 25250), (6565, 19750), (7979, 16250), (8125, 15958), (9875, 13130), (10270, 12625)]