20247120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 69261192

約数和(自身を除く): 49014072

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, 461, 488, 549, 610, 720, 732, 915, 922, 976, 1098, 1220, 1383, 1464, 1830, 1844, 2196, 2305, 2440, 2745, 2766, 2928, 3660, 3688, 4149, 4392, 4610, 4880, 5490, 5532, 6915, 7320, 7376, 8298, 8784, 9220, 10980, 11064, 13830, 14640, 16596, 18440, 20745, 21960, 22128, 27660, 28121, 33192, 36880, 41490, 43920, 55320, 56242, 66384, 82980, 84363, 110640, 112484, 140605, 165960, 168726, 224968, 253089, 281210, 331920, 337452, 421815, 449936, 506178, 562420, 674904, 843630, 1012356, 1124840, 1265445, 1349808, 1687260, 2024712, 2249680, 2530890, 3374520, 4049424, 5061780, 6749040, 10123560, 20247120]

約数ペア:

[(1, 20247120), (2, 10123560), (3, 6749040), (4, 5061780), (5, 4049424), (6, 3374520), (8, 2530890), (9, 2249680), (10, 2024712), (12, 1687260), (15, 1349808), (16, 1265445), (18, 1124840), (20, 1012356), (24, 843630), (30, 674904), (36, 562420), (40, 506178), (45, 449936), (48, 421815), (60, 337452), (61, 331920), (72, 281210), (80, 253089), (90, 224968), (120, 168726), (122, 165960), (144, 140605), (180, 112484), (183, 110640), (240, 84363), (244, 82980), (305, 66384), (360, 56242), (366, 55320), (461, 43920), (488, 41490), (549, 36880), (610, 33192), (720, 28121), (732, 27660), (915, 22128), (922, 21960), (976, 20745), (1098, 18440), (1220, 16596), (1383, 14640), (1464, 13830), (1830, 11064), (1844, 10980), (2196, 9220), (2305, 8784), (2440, 8298), (2745, 7376), (2766, 7320), (2928, 6915), (3660, 5532), (3688, 5490), (4149, 4880), (4392, 4610)]