20429996960

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{111323}}^1$

素因数の和:111406

約数の個数: 96

約数和(自身を含む): 51169853952

約数和(自身を除く): 30739856992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 74, 80, 124, 148, 155, 160, 185, 248, 296, 310, 370, 496, 592, 620, 740, 992, 1147, 1184, 1240, 1480, 2294, 2480, 2960, 4588, 4960, 5735, 5920, 9176, 11470, 18352, 22940, 36704, 45880, 91760, 111323, 183520, 222646, 445292, 556615, 890584, 1113230, 1781168, 2226460, 3451013, 3562336, 4118951, 4452920, 6902026, 8237902, 8905840, 13804052, 16475804, 17255065, 17811680, 20594755, 27608104, 32951608, 34510130, 41189510, 55216208, 65903216, 69020260, 82379020, 110432416, 127687481, 131806432, 138040520, 164758040, 255374962, 276081040, 329516080, 510749924, 552162080, 638437405, 659032160, 1021499848, 1276874810, 2042999696, 2553749620, 4085999392, 5107499240, 10214998480, 20429996960]

約数ペア:

[(1, 20429996960), (2, 10214998480), (4, 5107499240), (5, 4085999392), (8, 2553749620), (10, 2042999696), (16, 1276874810), (20, 1021499848), (31, 659032160), (32, 638437405), (37, 552162080), (40, 510749924), (62, 329516080), (74, 276081040), (80, 255374962), (124, 164758040), (148, 138040520), (155, 131806432), (160, 127687481), (185, 110432416), (248, 82379020), (296, 69020260), (310, 65903216), (370, 55216208), (496, 41189510), (592, 34510130), (620, 32951608), (740, 27608104), (992, 20594755), (1147, 17811680), (1184, 17255065), (1240, 16475804), (1480, 13804052), (2294, 8905840), (2480, 8237902), (2960, 6902026), (4588, 4452920), (4960, 4118951), (5735, 3562336), (5920, 3451013), (9176, 2226460), (11470, 1781168), (18352, 1113230), (22940, 890584), (36704, 556615), (45880, 445292), (91760, 222646), (111323, 183520)]