19458390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 57139200

約数和(自身を除く): 37680810

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 49, 61, 62, 70, 93, 98, 105, 122, 147, 155, 183, 186, 210, 217, 245, 294, 305, 310, 343, 366, 427, 434, 465, 490, 610, 651, 686, 735, 854, 915, 930, 1029, 1085, 1281, 1302, 1470, 1519, 1715, 1830, 1891, 2058, 2135, 2170, 2562, 2989, 3038, 3255, 3430, 3782, 4270, 4557, 5145, 5673, 5978, 6405, 6510, 7595, 8967, 9114, 9455, 10290, 10633, 11346, 12810, 13237, 14945, 15190, 17934, 18910, 20923, 21266, 22785, 26474, 28365, 29890, 31899, 39711, 41846, 44835, 45570, 53165, 56730, 62769, 63798, 66185, 79422, 89670, 92659, 104615, 106330, 125538, 132370, 159495, 185318, 198555, 209230, 277977, 313845, 318990, 397110, 463295, 555954, 627690, 648613, 926590, 1297226, 1389885, 1945839, 2779770, 3243065, 3891678, 6486130, 9729195, 19458390]

約数ペア:

[(1, 19458390), (2, 9729195), (3, 6486130), (5, 3891678), (6, 3243065), (7, 2779770), (10, 1945839), (14, 1389885), (15, 1297226), (21, 926590), (30, 648613), (31, 627690), (35, 555954), (42, 463295), (49, 397110), (61, 318990), (62, 313845), (70, 277977), (93, 209230), (98, 198555), (105, 185318), (122, 159495), (147, 132370), (155, 125538), (183, 106330), (186, 104615), (210, 92659), (217, 89670), (245, 79422), (294, 66185), (305, 63798), (310, 62769), (343, 56730), (366, 53165), (427, 45570), (434, 44835), (465, 41846), (490, 39711), (610, 31899), (651, 29890), (686, 28365), (735, 26474), (854, 22785), (915, 21266), (930, 20923), (1029, 18910), (1085, 17934), (1281, 15190), (1302, 14945), (1470, 13237), (1519, 12810), (1715, 11346), (1830, 10633), (1891, 10290), (2058, 9455), (2135, 9114), (2170, 8967), (2562, 7595), (2989, 6510), (3038, 6405), (3255, 5978), (3430, 5673), (3782, 5145), (4270, 4557)]