31139280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:789

約数の個数: 120

約数和(自身を含む): 106440360

約数和(自身を除く): 75301080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 709, 720, 732, 915, 976, 1098, 1220, 1418, 1464, 1830, 2127, 2196, 2440, 2745, 2836, 2928, 3545, 3660, 4254, 4392, 4880, 5490, 5672, 6381, 7090, 7320, 8508, 8784, 10635, 10980, 11344, 12762, 14180, 14640, 17016, 21270, 21960, 25524, 28360, 31905, 34032, 42540, 43249, 43920, 51048, 56720, 63810, 85080, 86498, 102096, 127620, 129747, 170160, 172996, 216245, 255240, 259494, 345992, 389241, 432490, 510480, 518988, 648735, 691984, 778482, 864980, 1037976, 1297470, 1556964, 1729960, 1946205, 2075952, 2594940, 3113928, 3459920, 3892410, 5189880, 6227856, 7784820, 10379760, 15569640, 31139280]

約数ペア:

[(1, 31139280), (2, 15569640), (3, 10379760), (4, 7784820), (5, 6227856), (6, 5189880), (8, 3892410), (9, 3459920), (10, 3113928), (12, 2594940), (15, 2075952), (16, 1946205), (18, 1729960), (20, 1556964), (24, 1297470), (30, 1037976), (36, 864980), (40, 778482), (45, 691984), (48, 648735), (60, 518988), (61, 510480), (72, 432490), (80, 389241), (90, 345992), (120, 259494), (122, 255240), (144, 216245), (180, 172996), (183, 170160), (240, 129747), (244, 127620), (305, 102096), (360, 86498), (366, 85080), (488, 63810), (549, 56720), (610, 51048), (709, 43920), (720, 43249), (732, 42540), (915, 34032), (976, 31905), (1098, 28360), (1220, 25524), (1418, 21960), (1464, 21270), (1830, 17016), (2127, 14640), (2196, 14180), (2440, 12762), (2745, 11344), (2836, 10980), (2928, 10635), (3545, 8784), (3660, 8508), (4254, 7320), (4392, 7090), (4880, 6381), (5490, 5672)]