2161320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 7741440

約数和(自身を除く): 5580120

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, 83, 84, 93, 105, 120, 124, 140, 155, 166, 168, 186, 210, 217, 248, 249, 280, 310, 332, 372, 415, 420, 434, 465, 498, 581, 620, 651, 664, 744, 830, 840, 868, 930, 996, 1085, 1162, 1240, 1245, 1302, 1660, 1736, 1743, 1860, 1992, 2170, 2324, 2490, 2573, 2604, 2905, 3255, 3320, 3486, 3720, 4340, 4648, 4980, 5146, 5208, 5810, 6510, 6972, 7719, 8680, 8715, 9960, 10292, 11620, 12865, 13020, 13944, 15438, 17430, 18011, 20584, 23240, 25730, 26040, 30876, 34860, 36022, 38595, 51460, 54033, 61752, 69720, 72044, 77190, 90055, 102920, 108066, 144088, 154380, 180110, 216132, 270165, 308760, 360220, 432264, 540330, 720440, 1080660, 2161320]

約数ペア:

[(1, 2161320), (2, 1080660), (3, 720440), (4, 540330), (5, 432264), (6, 360220), (7, 308760), (8, 270165), (10, 216132), (12, 180110), (14, 154380), (15, 144088), (20, 108066), (21, 102920), (24, 90055), (28, 77190), (30, 72044), (31, 69720), (35, 61752), (40, 54033), (42, 51460), (56, 38595), (60, 36022), (62, 34860), (70, 30876), (83, 26040), (84, 25730), (93, 23240), (105, 20584), (120, 18011), (124, 17430), (140, 15438), (155, 13944), (166, 13020), (168, 12865), (186, 11620), (210, 10292), (217, 9960), (248, 8715), (249, 8680), (280, 7719), (310, 6972), (332, 6510), (372, 5810), (415, 5208), (420, 5146), (434, 4980), (465, 4648), (498, 4340), (581, 3720), (620, 3486), (651, 3320), (664, 3255), (744, 2905), (830, 2604), (840, 2573), (868, 2490), (930, 2324), (996, 2170), (1085, 1992), (1162, 1860), (1240, 1743), (1245, 1736), (1302, 1660)]