20856896.000000000

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:721

約数の個数: 144

約数和(自身を含む): 387475200

約数和(自身を除く): 270112800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 79, 80, 96, 100, 120, 150, 158, 160, 200, 237, 240, 300, 316, 395, 400, 474, 480, 600, 619, 632, 790, 800, 948, 1185, 1200, 1238, 1264, 1580, 1857, 1896, 1975, 2370, 2400, 2476, 2528, 3095, 3160, 3714, 3792, 3950, 4740, 4952, 5925, 6190, 6320, 7428, 7584, 7900, 9285, 9480, 9904, 11850, 12380, 12640, 14856, 15475, 15800, 18570, 18960, 19808, 23700, 24760, 29712, 30950, 31600, 37140, 37920, 46425, 47400, 48901, 49520, 59424, 61900, 63200, 74280, 92850, 94800, 97802, 99040, 123800, 146703, 148560, 185700, 189600, 195604, 244505, 247600, 293406, 297120, 371400, 391208, 489010, 495200, 586812, 733515, 742800, 782416, 978020, 1173624, 1222525, 1467030, 1485600, 1564832, 1956040, 2347248, 2445050, 2934060, 3667575, 3912080, 4694496, 4890100, 5868120, 7335150, 7824160, 9780200, 11736240, 14670300, 19560400, 23472480, 29340600, 39120800, 58681200, 117362400]

約数ペア:

[(1, 117362400), (2, 58681200), (3, 39120800), (4, 29340600), (5, 23472480), (6, 19560400), (8, 14670300), (10, 11736240), (12, 9780200), (15, 7824160), (16, 7335150), (20, 5868120), (24, 4890100), (25, 4694496), (30, 3912080), (32, 3667575), (40, 2934060), (48, 2445050), (50, 2347248), (60, 1956040), (75, 1564832), (79, 1485600), (80, 1467030), (96, 1222525), (100, 1173624), (120, 978020), (150, 782416), (158, 742800), (160, 733515), (200, 586812), (237, 495200), (240, 489010), (300, 391208), (316, 371400), (395, 297120), (400, 293406), (474, 247600), (480, 244505), (600, 195604), (619, 189600), (632, 185700), (790, 148560), (800, 146703), (948, 123800), (1185, 99040), (1200, 97802), (1238, 94800), (1264, 92850), (1580, 74280), (1857, 63200), (1896, 61900), (1975, 59424), (2370, 49520), (2400, 48901), (2476, 47400), (2528, 46425), (3095, 37920), (3160, 37140), (3714, 31600), (3792, 30950), (3950, 29712), (4740, 24760), (4952, 23700), (5925, 19808), (6190, 18960), (6320, 18570), (7428, 15800), (7584, 15475), (7900, 14856), (9285, 12640), (9480, 12380), (9904, 11850)]