20235218920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1\times {\mathrm{1637}}^1$

素因数の和:2123

約数の個数: 128

約数和(自身を含む): 52618325760

約数和(自身を除く): 32383106840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 337, 524, 655, 674, 917, 1048, 1310, 1348, 1637, 1685, 1834, 2359, 2620, 2696, 3274, 3370, 3668, 4585, 4718, 5240, 6548, 6740, 7336, 8185, 9170, 9436, 11459, 11795, 13096, 13480, 16370, 18340, 18872, 22918, 23590, 32740, 36680, 44147, 45836, 47180, 57295, 65480, 88294, 91672, 94360, 114590, 176588, 214447, 220735, 229180, 309029, 353176, 428894, 441470, 458360, 551669, 618058, 857788, 882940, 1072235, 1103338, 1236116, 1501129, 1545145, 1715576, 1765880, 2144470, 2206676, 2472232, 2758345, 3002258, 3090290, 3861683, 4288940, 4413352, 5516690, 6004516, 6180580, 7505645, 7723366, 8577880, 11033380, 12009032, 12361160, 15011290, 15446732, 19308415, 22066760, 30022580, 30893464, 38616830, 60045160, 72268639, 77233660, 144537278, 154467320, 289074556, 361343195, 505880473, 578149112, 722686390, 1011760946, 1445372780, 2023521892, 2529402365, 2890745560, 4047043784, 5058804730, 10117609460, 20235218920]

約数ペア:

[(1, 20235218920), (2, 10117609460), (4, 5058804730), (5, 4047043784), (7, 2890745560), (8, 2529402365), (10, 2023521892), (14, 1445372780), (20, 1011760946), (28, 722686390), (35, 578149112), (40, 505880473), (56, 361343195), (70, 289074556), (131, 154467320), (140, 144537278), (262, 77233660), (280, 72268639), (337, 60045160), (524, 38616830), (655, 30893464), (674, 30022580), (917, 22066760), (1048, 19308415), (1310, 15446732), (1348, 15011290), (1637, 12361160), (1685, 12009032), (1834, 11033380), (2359, 8577880), (2620, 7723366), (2696, 7505645), (3274, 6180580), (3370, 6004516), (3668, 5516690), (4585, 4413352), (4718, 4288940), (5240, 3861683), (6548, 3090290), (6740, 3002258), (7336, 2758345), (8185, 2472232), (9170, 2206676), (9436, 2144470), (11459, 1765880), (11795, 1715576), (13096, 1545145), (13480, 1501129), (16370, 1236116), (18340, 1103338), (18872, 1072235), (22918, 882940), (23590, 857788), (32740, 618058), (36680, 551669), (44147, 458360), (45836, 441470), (47180, 428894), (57295, 353176), (65480, 309029), (88294, 229180), (91672, 220735), (94360, 214447), (114590, 176588)]