20841600

素因数分解:

$2^7\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:207

約数の個数: 192

約数和(自身を含む): 74370240

約数和(自身を除く): 53528640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 128, 130, 150, 156, 160, 167, 192, 195, 200, 208, 240, 260, 300, 312, 320, 325, 334, 384, 390, 400, 416, 480, 501, 520, 600, 624, 640, 650, 668, 780, 800, 832, 835, 960, 975, 1002, 1040, 1200, 1248, 1300, 1336, 1560, 1600, 1664, 1670, 1920, 1950, 2004, 2080, 2171, 2400, 2496, 2505, 2600, 2672, 3120, 3200, 3340, 3900, 4008, 4160, 4175, 4342, 4800, 4992, 5010, 5200, 5344, 6240, 6513, 6680, 7800, 8016, 8320, 8350, 8684, 9600, 10020, 10400, 10688, 10855, 12480, 12525, 13026, 13360, 15600, 16032, 16700, 17368, 20040, 20800, 21376, 21710, 24960, 25050, 26052, 26720, 31200, 32064, 32565, 33400, 34736, 40080, 41600, 43420, 50100, 52104, 53440, 54275, 62400, 64128, 65130, 66800, 69472, 80160, 86840, 100200, 104208, 106880, 108550, 124800, 130260, 133600, 138944, 160320, 162825, 173680, 200400, 208416, 217100, 260520, 267200, 277888, 320640, 325650, 347360, 400800, 416832, 434200, 521040, 534400, 651300, 694720, 801600, 833664, 868400, 1042080, 1302600, 1389440, 1603200, 1736800, 2084160, 2605200, 3473600, 4168320, 5210400, 6947200, 10420800, 20841600]

約数ペア:

[(1, 20841600), (2, 10420800), (3, 6947200), (4, 5210400), (5, 4168320), (6, 3473600), (8, 2605200), (10, 2084160), (12, 1736800), (13, 1603200), (15, 1389440), (16, 1302600), (20, 1042080), (24, 868400), (25, 833664), (26, 801600), (30, 694720), (32, 651300), (39, 534400), (40, 521040), (48, 434200), (50, 416832), (52, 400800), (60, 347360), (64, 325650), (65, 320640), (75, 277888), (78, 267200), (80, 260520), (96, 217100), (100, 208416), (104, 200400), (120, 173680), (128, 162825), (130, 160320), (150, 138944), (156, 133600), (160, 130260), (167, 124800), (192, 108550), (195, 106880), (200, 104208), (208, 100200), (240, 86840), (260, 80160), (300, 69472), (312, 66800), (320, 65130), (325, 64128), (334, 62400), (384, 54275), (390, 53440), (400, 52104), (416, 50100), (480, 43420), (501, 41600), (520, 40080), (600, 34736), (624, 33400), (640, 32565), (650, 32064), (668, 31200), (780, 26720), (800, 26052), (832, 25050), (835, 24960), (960, 21710), (975, 21376), (1002, 20800), (1040, 20040), (1200, 17368), (1248, 16700), (1300, 16032), (1336, 15600), (1560, 13360), (1600, 13026), (1664, 12525), (1670, 12480), (1920, 10855), (1950, 10688), (2004, 10400), (2080, 10020), (2171, 9600), (2400, 8684), (2496, 8350), (2505, 8320), (2600, 8016), (2672, 7800), (3120, 6680), (3200, 6513), (3340, 6240), (3900, 5344), (4008, 5200), (4160, 5010), (4175, 4992), (4342, 4800)]