20957050240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{64081}}^1$

素因数の和:64180

約数の個数: 128

約数和(自身を含む): 58042912320

約数和(自身を除く): 37085862080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 128, 140, 146, 160, 224, 280, 292, 320, 365, 448, 511, 560, 584, 640, 730, 896, 1022, 1120, 1168, 1460, 2044, 2240, 2336, 2555, 2920, 4088, 4480, 4672, 5110, 5840, 8176, 9344, 10220, 11680, 16352, 20440, 23360, 32704, 40880, 46720, 64081, 65408, 81760, 128162, 163520, 256324, 320405, 327040, 448567, 512648, 640810, 897134, 1025296, 1281620, 1794268, 2050592, 2242835, 2563240, 3588536, 4101184, 4485670, 4677913, 5126480, 7177072, 8202368, 8971340, 9355826, 10252960, 14354144, 17942680, 18711652, 20505920, 23389565, 28708288, 32745391, 35885360, 37423304, 41011840, 46779130, 57416576, 65490782, 71770720, 74846608, 93558260, 130981564, 143541440, 149693216, 163726955, 187116520, 261963128, 287082880, 299386432, 327453910, 374233040, 523926256, 598772864, 654907820, 748466080, 1047852512, 1309815640, 1496932160, 2095705024, 2619631280, 2993864320, 4191410048, 5239262560, 10478525120, 20957050240]

約数ペア:

[(1, 20957050240), (2, 10478525120), (4, 5239262560), (5, 4191410048), (7, 2993864320), (8, 2619631280), (10, 2095705024), (14, 1496932160), (16, 1309815640), (20, 1047852512), (28, 748466080), (32, 654907820), (35, 598772864), (40, 523926256), (56, 374233040), (64, 327453910), (70, 299386432), (73, 287082880), (80, 261963128), (112, 187116520), (128, 163726955), (140, 149693216), (146, 143541440), (160, 130981564), (224, 93558260), (280, 74846608), (292, 71770720), (320, 65490782), (365, 57416576), (448, 46779130), (511, 41011840), (560, 37423304), (584, 35885360), (640, 32745391), (730, 28708288), (896, 23389565), (1022, 20505920), (1120, 18711652), (1168, 17942680), (1460, 14354144), (2044, 10252960), (2240, 9355826), (2336, 8971340), (2555, 8202368), (2920, 7177072), (4088, 5126480), (4480, 4677913), (4672, 4485670), (5110, 4101184), (5840, 3588536), (8176, 2563240), (9344, 2242835), (10220, 2050592), (11680, 1794268), (16352, 1281620), (20440, 1025296), (23360, 897134), (32704, 640810), (40880, 512648), (46720, 448567), (64081, 327040), (65408, 320405), (81760, 256324), (128162, 163520)]