18397260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 192

約数和(自身を含む): 67952640

約数和(自身を除く): 49555380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 157, 180, 186, 189, 210, 217, 252, 270, 279, 310, 314, 315, 372, 378, 420, 434, 465, 471, 540, 558, 620, 628, 630, 651, 756, 785, 837, 868, 930, 942, 945, 1085, 1099, 1116, 1260, 1302, 1395, 1413, 1570, 1674, 1860, 1884, 1890, 1953, 2170, 2198, 2355, 2604, 2790, 2826, 3140, 3255, 3297, 3348, 3780, 3906, 4185, 4239, 4340, 4396, 4710, 4867, 5495, 5580, 5652, 5859, 6510, 6594, 7065, 7812, 8370, 8478, 9420, 9734, 9765, 9891, 10990, 11718, 13020, 13188, 14130, 14601, 16485, 16740, 16956, 19468, 19530, 19782, 21195, 21980, 23436, 24335, 28260, 29202, 29295, 29673, 32970, 34069, 39060, 39564, 42390, 43803, 48670, 49455, 58404, 58590, 59346, 65940, 68138, 73005, 84780, 87606, 97340, 98910, 102207, 117180, 118692, 131409, 136276, 146010, 148365, 170345, 175212, 197820, 204414, 219015, 262818, 292020, 296730, 306621, 340690, 408828, 438030, 511035, 525636, 593460, 613242, 657045, 681380, 876060, 919863, 1022070, 1226484, 1314090, 1533105, 1839726, 2044140, 2628180, 3066210, 3679452, 4599315, 6132420, 9198630, 18397260]

約数ペア:

[(1, 18397260), (2, 9198630), (3, 6132420), (4, 4599315), (5, 3679452), (6, 3066210), (7, 2628180), (9, 2044140), (10, 1839726), (12, 1533105), (14, 1314090), (15, 1226484), (18, 1022070), (20, 919863), (21, 876060), (27, 681380), (28, 657045), (30, 613242), (31, 593460), (35, 525636), (36, 511035), (42, 438030), (45, 408828), (54, 340690), (60, 306621), (62, 296730), (63, 292020), (70, 262818), (84, 219015), (90, 204414), (93, 197820), (105, 175212), (108, 170345), (124, 148365), (126, 146010), (135, 136276), (140, 131409), (155, 118692), (157, 117180), (180, 102207), (186, 98910), (189, 97340), (210, 87606), (217, 84780), (252, 73005), (270, 68138), (279, 65940), (310, 59346), (314, 58590), (315, 58404), (372, 49455), (378, 48670), (420, 43803), (434, 42390), (465, 39564), (471, 39060), (540, 34069), (558, 32970), (620, 29673), (628, 29295), (630, 29202), (651, 28260), (756, 24335), (785, 23436), (837, 21980), (868, 21195), (930, 19782), (942, 19530), (945, 19468), (1085, 16956), (1099, 16740), (1116, 16485), (1260, 14601), (1302, 14130), (1395, 13188), (1413, 13020), (1570, 11718), (1674, 10990), (1860, 9891), (1884, 9765), (1890, 9734), (1953, 9420), (2170, 8478), (2198, 8370), (2355, 7812), (2604, 7065), (2790, 6594), (2826, 6510), (3140, 5859), (3255, 5652), (3297, 5580), (3348, 5495), (3780, 4867), (3906, 4710), (4185, 4396), (4239, 4340)]