12689561560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1\times {\mathrm{20663}}^1$

素因数の和:21868

約数の個数: 64

約数和(自身を含む): 30775308480

約数和(自身を除く): 18085746920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1181, 2362, 4724, 5905, 9448, 11810, 15353, 20663, 23620, 30706, 41326, 47240, 61412, 76765, 82652, 103315, 122824, 153530, 165304, 206630, 268619, 307060, 413260, 537238, 614120, 826520, 1074476, 1343095, 2148952, 2686190, 5372380, 10744760, 24403003, 48806006, 97612012, 122015015, 195224024, 244030030, 317239039, 488060060, 634478078, 976120120, 1268956156, 1586195195, 2537912312, 3172390390, 6344780780, 12689561560]

約数ペア:

[(1, 12689561560), (2, 6344780780), (4, 3172390390), (5, 2537912312), (8, 1586195195), (10, 1268956156), (13, 976120120), (20, 634478078), (26, 488060060), (40, 317239039), (52, 244030030), (65, 195224024), (104, 122015015), (130, 97612012), (260, 48806006), (520, 24403003), (1181, 10744760), (2362, 5372380), (4724, 2686190), (5905, 2148952), (9448, 1343095), (11810, 1074476), (15353, 826520), (20663, 614120), (23620, 537238), (30706, 413260), (41326, 307060), (47240, 268619), (61412, 206630), (76765, 165304), (82652, 153530), (103315, 122824)]