20105354920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^2\times {\mathrm{7039}}^1$

素因数の和:7259

約数の個数: 96

約数和(自身を含む): 52223846400

約数和(自身を除く): 32118491480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7039, 7070, 10201, 14078, 14140, 20402, 28156, 28280, 35195, 40804, 49273, 51005, 56312, 70390, 71407, 81608, 98546, 102010, 140780, 142814, 197092, 204020, 246365, 281560, 285628, 357035, 394184, 408040, 492730, 571256, 710939, 714070, 985460, 1421878, 1428140, 1970920, 2843756, 2856280, 3554695, 4976573, 5687512, 7109390, 9953146, 14218780, 19906292, 24882865, 28437560, 39812584, 49765730, 71804839, 99531460, 143609678, 199062920, 287219356, 359024195, 502633873, 574438712, 718048390, 1005267746, 1436096780, 2010535492, 2513169365, 2872193560, 4021070984, 5026338730, 10052677460, 20105354920]

約数ペア:

[(1, 20105354920), (2, 10052677460), (4, 5026338730), (5, 4021070984), (7, 2872193560), (8, 2513169365), (10, 2010535492), (14, 1436096780), (20, 1005267746), (28, 718048390), (35, 574438712), (40, 502633873), (56, 359024195), (70, 287219356), (101, 199062920), (140, 143609678), (202, 99531460), (280, 71804839), (404, 49765730), (505, 39812584), (707, 28437560), (808, 24882865), (1010, 19906292), (1414, 14218780), (2020, 9953146), (2828, 7109390), (3535, 5687512), (4040, 4976573), (5656, 3554695), (7039, 2856280), (7070, 2843756), (10201, 1970920), (14078, 1428140), (14140, 1421878), (20402, 985460), (28156, 714070), (28280, 710939), (35195, 571256), (40804, 492730), (49273, 408040), (51005, 394184), (56312, 357035), (70390, 285628), (71407, 281560), (81608, 246365), (98546, 204020), (102010, 197092), (140780, 142814)]