205012920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7873}}^1$

素因数の和:7925

約数の個数: 128

約数和(自身を含む): 725667840

約数和(自身を除く): 520654920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 7873, 8680, 13020, 15746, 23619, 26040, 31492, 39365, 47238, 55111, 62984, 78730, 94476, 110222, 118095, 157460, 165333, 188952, 220444, 236190, 244063, 275555, 314920, 330666, 440888, 472380, 488126, 551110, 661332, 732189, 826665, 944760, 976252, 1102220, 1220315, 1322664, 1464378, 1653330, 1708441, 1952504, 2204440, 2440630, 2928756, 3306660, 3416882, 3660945, 4881260, 5125323, 5857512, 6613320, 6833764, 7321890, 8542205, 9762520, 10250646, 13667528, 14643780, 17084410, 20501292, 25626615, 29287560, 34168820, 41002584, 51253230, 68337640, 102506460, 205012920]

約数ペア:

[(1, 205012920), (2, 102506460), (3, 68337640), (4, 51253230), (5, 41002584), (6, 34168820), (7, 29287560), (8, 25626615), (10, 20501292), (12, 17084410), (14, 14643780), (15, 13667528), (20, 10250646), (21, 9762520), (24, 8542205), (28, 7321890), (30, 6833764), (31, 6613320), (35, 5857512), (40, 5125323), (42, 4881260), (56, 3660945), (60, 3416882), (62, 3306660), (70, 2928756), (84, 2440630), (93, 2204440), (105, 1952504), (120, 1708441), (124, 1653330), (140, 1464378), (155, 1322664), (168, 1220315), (186, 1102220), (210, 976252), (217, 944760), (248, 826665), (280, 732189), (310, 661332), (372, 551110), (420, 488126), (434, 472380), (465, 440888), (620, 330666), (651, 314920), (744, 275555), (840, 244063), (868, 236190), (930, 220444), (1085, 188952), (1240, 165333), (1302, 157460), (1736, 118095), (1860, 110222), (2170, 94476), (2604, 78730), (3255, 62984), (3720, 55111), (4340, 47238), (5208, 39365), (6510, 31492), (7873, 26040), (8680, 23619), (13020, 15746)]