79511900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1973}}^1$

素因数の和:2031

約数の個数: 72

約数和(自身を含む): 191904384

約数和(自身を除く): 112392484

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, 1973, 2015, 3100, 3946, 4030, 7892, 8060, 9865, 10075, 19730, 20150, 25649, 39460, 40300, 49325, 51298, 61163, 98650, 102596, 122326, 128245, 197300, 244652, 256490, 305815, 512980, 611630, 641225, 795119, 1223260, 1282450, 1529075, 1590238, 2564900, 3058150, 3180476, 3975595, 6116300, 7951190, 15902380, 19877975, 39755950, 79511900]

約数ペア:

[(1, 79511900), (2, 39755950), (4, 19877975), (5, 15902380), (10, 7951190), (13, 6116300), (20, 3975595), (25, 3180476), (26, 3058150), (31, 2564900), (50, 1590238), (52, 1529075), (62, 1282450), (65, 1223260), (100, 795119), (124, 641225), (130, 611630), (155, 512980), (260, 305815), (310, 256490), (325, 244652), (403, 197300), (620, 128245), (650, 122326), (775, 102596), (806, 98650), (1300, 61163), (1550, 51298), (1612, 49325), (1973, 40300), (2015, 39460), (3100, 25649), (3946, 20150), (4030, 19730), (7892, 10075), (8060, 9865)]