20175018860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{2089}}^1$

素因数の和:2587

約数の個数: 96

約数和(自身を含む): 45044482560

約数和(自身を除く): 24869463700

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 421, 620, 740, 842, 1147, 1684, 2089, 2105, 2294, 4178, 4210, 4588, 5735, 8356, 8420, 10445, 11470, 13051, 15577, 20890, 22940, 26102, 31154, 41780, 52204, 62308, 64759, 65255, 77293, 77885, 129518, 130510, 154586, 155770, 259036, 261020, 309172, 311540, 323795, 386465, 482887, 647590, 772930, 879469, 965774, 1295180, 1545860, 1758938, 1931548, 2396083, 2414435, 3517876, 4397345, 4792166, 4828870, 8794690, 9584332, 9657740, 11980415, 17589380, 23960830, 27263539, 32540353, 47921660, 54527078, 65080706, 109054156, 130161412, 136317695, 162701765, 272635390, 325403530, 545270780, 650807060, 1008750943, 2017501886, 4035003772, 5043754715, 10087509430, 20175018860]

約数ペア:

[(1, 20175018860), (2, 10087509430), (4, 5043754715), (5, 4035003772), (10, 2017501886), (20, 1008750943), (31, 650807060), (37, 545270780), (62, 325403530), (74, 272635390), (124, 162701765), (148, 136317695), (155, 130161412), (185, 109054156), (310, 65080706), (370, 54527078), (421, 47921660), (620, 32540353), (740, 27263539), (842, 23960830), (1147, 17589380), (1684, 11980415), (2089, 9657740), (2105, 9584332), (2294, 8794690), (4178, 4828870), (4210, 4792166), (4588, 4397345), (5735, 3517876), (8356, 2414435), (8420, 2396083), (10445, 1931548), (11470, 1758938), (13051, 1545860), (15577, 1295180), (20890, 965774), (22940, 879469), (26102, 772930), (31154, 647590), (41780, 482887), (52204, 386465), (62308, 323795), (64759, 311540), (65255, 309172), (77293, 261020), (77885, 259036), (129518, 155770), (130510, 154586)]