20238900920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{439}}^1\times {\mathrm{719}}^1$

素因数の和:1405

約数の個数: 128

約数和(自身を含む): 52462080000

約数和(自身を除く): 32223179080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 439, 458, 719, 878, 916, 1145, 1438, 1603, 1756, 1832, 2195, 2290, 2876, 3073, 3206, 3512, 3595, 4390, 4580, 5033, 5752, 6146, 6412, 7190, 8015, 8780, 9160, 10066, 12292, 12824, 14380, 15365, 16030, 17560, 20132, 24584, 25165, 28760, 30730, 32060, 40264, 50330, 61460, 64120, 100531, 100660, 122920, 164651, 201062, 201320, 315641, 329302, 402124, 502655, 631282, 658604, 703717, 804248, 823255, 1005310, 1152557, 1262564, 1317208, 1407434, 1578205, 1646510, 2010620, 2209487, 2305114, 2525128, 2814868, 3156410, 3293020, 3518585, 4021240, 4418974, 4610228, 5629736, 5762785, 6312820, 6586040, 7037170, 8837948, 9220456, 11047435, 11525570, 12625640, 14074340, 17675896, 22094870, 23051140, 28148680, 44189740, 46102280, 72281789, 88379480, 144563578, 289127156, 361408945, 505972523, 578254312, 722817890, 1011945046, 1445635780, 2023890092, 2529862615, 2891271560, 4047780184, 5059725230, 10119450460, 20238900920]

約数ペア:

[(1, 20238900920), (2, 10119450460), (4, 5059725230), (5, 4047780184), (7, 2891271560), (8, 2529862615), (10, 2023890092), (14, 1445635780), (20, 1011945046), (28, 722817890), (35, 578254312), (40, 505972523), (56, 361408945), (70, 289127156), (140, 144563578), (229, 88379480), (280, 72281789), (439, 46102280), (458, 44189740), (719, 28148680), (878, 23051140), (916, 22094870), (1145, 17675896), (1438, 14074340), (1603, 12625640), (1756, 11525570), (1832, 11047435), (2195, 9220456), (2290, 8837948), (2876, 7037170), (3073, 6586040), (3206, 6312820), (3512, 5762785), (3595, 5629736), (4390, 4610228), (4580, 4418974), (5033, 4021240), (5752, 3518585), (6146, 3293020), (6412, 3156410), (7190, 2814868), (8015, 2525128), (8780, 2305114), (9160, 2209487), (10066, 2010620), (12292, 1646510), (12824, 1578205), (14380, 1407434), (15365, 1317208), (16030, 1262564), (17560, 1152557), (20132, 1005310), (24584, 823255), (25165, 804248), (28760, 703717), (30730, 658604), (32060, 631282), (40264, 502655), (50330, 402124), (61460, 329302), (64120, 315641), (100531, 201320), (100660, 201062), (122920, 164651)]