1207200760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{1951}}^1$

素因数の和:2492

約数の個数: 64

約数和(自身を含む): 2810880000

約数和(自身を除く): 1603679240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 499, 620, 998, 1240, 1951, 1996, 2495, 3902, 3992, 4990, 7804, 9755, 9980, 15469, 15608, 19510, 19960, 30938, 39020, 60481, 61876, 77345, 78040, 120962, 123752, 154690, 241924, 302405, 309380, 483848, 604810, 618760, 973549, 1209620, 1947098, 2419240, 3894196, 4867745, 7788392, 9735490, 19470980, 30180019, 38941960, 60360038, 120720076, 150900095, 241440152, 301800190, 603600380, 1207200760]

約数ペア:

[(1, 1207200760), (2, 603600380), (4, 301800190), (5, 241440152), (8, 150900095), (10, 120720076), (20, 60360038), (31, 38941960), (40, 30180019), (62, 19470980), (124, 9735490), (155, 7788392), (248, 4867745), (310, 3894196), (499, 2419240), (620, 1947098), (998, 1209620), (1240, 973549), (1951, 618760), (1996, 604810), (2495, 483848), (3902, 309380), (3992, 302405), (4990, 241924), (7804, 154690), (9755, 123752), (9980, 120962), (15469, 78040), (15608, 77345), (19510, 61876), (19960, 60481), (30938, 39020)]