31804760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1973}}^1$

素因数の和:2028

約数の個数: 64

約数和(自身を含む): 79591680

約数和(自身を除く): 47786920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 1973, 2015, 3224, 3946, 4030, 7892, 8060, 9865, 15784, 16120, 19730, 25649, 39460, 51298, 61163, 78920, 102596, 122326, 128245, 205192, 244652, 256490, 305815, 489304, 512980, 611630, 795119, 1025960, 1223260, 1590238, 2446520, 3180476, 3975595, 6360952, 7951190, 15902380, 31804760]

約数ペア:

[(1, 31804760), (2, 15902380), (4, 7951190), (5, 6360952), (8, 3975595), (10, 3180476), (13, 2446520), (20, 1590238), (26, 1223260), (31, 1025960), (40, 795119), (52, 611630), (62, 512980), (65, 489304), (104, 305815), (124, 256490), (130, 244652), (155, 205192), (248, 128245), (260, 122326), (310, 102596), (403, 78920), (520, 61163), (620, 51298), (806, 39460), (1240, 25649), (1612, 19730), (1973, 16120), (2015, 15784), (3224, 9865), (3946, 8060), (4030, 7892)]