20771100

素因数分解:

$2^2\times 3^3\times 5^2\times 7^2\times {\mathrm{157}}^1$

素因数の和:194

約数の個数: 216

約数和(自身を含む): 78172080

約数和(自身を除く): 57400980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 49, 50, 54, 60, 63, 70, 75, 84, 90, 98, 100, 105, 108, 126, 135, 140, 147, 150, 157, 175, 180, 189, 196, 210, 225, 245, 252, 270, 294, 300, 314, 315, 350, 378, 420, 441, 450, 471, 490, 525, 540, 588, 628, 630, 675, 700, 735, 756, 785, 882, 900, 942, 945, 980, 1050, 1099, 1225, 1260, 1323, 1350, 1413, 1470, 1570, 1575, 1764, 1884, 1890, 2100, 2198, 2205, 2355, 2450, 2646, 2700, 2826, 2940, 3140, 3150, 3297, 3675, 3780, 3925, 4239, 4396, 4410, 4710, 4725, 4900, 5292, 5495, 5652, 6300, 6594, 6615, 7065, 7350, 7693, 7850, 8478, 8820, 9420, 9450, 9891, 10990, 11025, 11775, 13188, 13230, 14130, 14700, 15386, 15700, 16485, 16956, 18900, 19782, 21195, 21980, 22050, 23079, 23550, 26460, 27475, 28260, 29673, 30772, 32970, 33075, 35325, 38465, 39564, 42390, 44100, 46158, 47100, 49455, 54950, 59346, 65940, 66150, 69237, 70650, 76930, 82425, 84780, 92316, 98910, 105975, 109900, 115395, 118692, 132300, 138474, 141300, 148365, 153860, 164850, 192325, 197820, 207711, 211950, 230790, 247275, 276948, 296730, 329700, 346185, 384650, 415422, 423900, 461580, 494550, 576975, 593460, 692370, 741825, 769300, 830844, 989100, 1038555, 1153950, 1384740, 1483650, 1730925, 2077110, 2307900, 2967300, 3461850, 4154220, 5192775, 6923700, 10385550, 20771100]

約数ペア:

[(1, 20771100), (2, 10385550), (3, 6923700), (4, 5192775), (5, 4154220), (6, 3461850), (7, 2967300), (9, 2307900), (10, 2077110), (12, 1730925), (14, 1483650), (15, 1384740), (18, 1153950), (20, 1038555), (21, 989100), (25, 830844), (27, 769300), (28, 741825), (30, 692370), (35, 593460), (36, 576975), (42, 494550), (45, 461580), (49, 423900), (50, 415422), (54, 384650), (60, 346185), (63, 329700), (70, 296730), (75, 276948), (84, 247275), (90, 230790), (98, 211950), (100, 207711), (105, 197820), (108, 192325), (126, 164850), (135, 153860), (140, 148365), (147, 141300), (150, 138474), (157, 132300), (175, 118692), (180, 115395), (189, 109900), (196, 105975), (210, 98910), (225, 92316), (245, 84780), (252, 82425), (270, 76930), (294, 70650), (300, 69237), (314, 66150), (315, 65940), (350, 59346), (378, 54950), (420, 49455), (441, 47100), (450, 46158), (471, 44100), (490, 42390), (525, 39564), (540, 38465), (588, 35325), (628, 33075), (630, 32970), (675, 30772), (700, 29673), (735, 28260), (756, 27475), (785, 26460), (882, 23550), (900, 23079), (942, 22050), (945, 21980), (980, 21195), (1050, 19782), (1099, 18900), (1225, 16956), (1260, 16485), (1323, 15700), (1350, 15386), (1413, 14700), (1470, 14130), (1570, 13230), (1575, 13188), (1764, 11775), (1884, 11025), (1890, 10990), (2100, 9891), (2198, 9450), (2205, 9420), (2355, 8820), (2450, 8478), (2646, 7850), (2700, 7693), (2826, 7350), (2940, 7065), (3140, 6615), (3150, 6594), (3297, 6300), (3675, 5652), (3780, 5495), (3925, 5292), (4239, 4900), (4396, 4725), (4410, 4710)]