20737760

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:196

約数の個数: 96

約数和(自身を含む): 52399872

約数和(自身を除く): 31662112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 74, 80, 113, 124, 148, 155, 160, 185, 226, 248, 296, 310, 370, 452, 496, 565, 592, 620, 740, 904, 992, 1130, 1147, 1184, 1240, 1480, 1808, 2260, 2294, 2480, 2960, 3503, 3616, 4181, 4520, 4588, 4960, 5735, 5920, 7006, 8362, 9040, 9176, 11470, 14012, 16724, 17515, 18080, 18352, 20905, 22940, 28024, 33448, 35030, 36704, 41810, 45880, 56048, 66896, 70060, 83620, 91760, 112096, 129611, 133792, 140120, 167240, 183520, 259222, 280240, 334480, 518444, 560480, 648055, 668960, 1036888, 1296110, 2073776, 2592220, 4147552, 5184440, 10368880, 20737760]

約数ペア:

[(1, 20737760), (2, 10368880), (4, 5184440), (5, 4147552), (8, 2592220), (10, 2073776), (16, 1296110), (20, 1036888), (31, 668960), (32, 648055), (37, 560480), (40, 518444), (62, 334480), (74, 280240), (80, 259222), (113, 183520), (124, 167240), (148, 140120), (155, 133792), (160, 129611), (185, 112096), (226, 91760), (248, 83620), (296, 70060), (310, 66896), (370, 56048), (452, 45880), (496, 41810), (565, 36704), (592, 35030), (620, 33448), (740, 28024), (904, 22940), (992, 20905), (1130, 18352), (1147, 18080), (1184, 17515), (1240, 16724), (1480, 14012), (1808, 11470), (2260, 9176), (2294, 9040), (2480, 8362), (2960, 7006), (3503, 5920), (3616, 5735), (4181, 4960), (4520, 4588)]