90016640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:380

約数の個数: 128

約数和(自身を含む): 250283520

約数和(自身を除く): 160266880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 280, 283, 284, 320, 355, 448, 497, 560, 566, 568, 640, 710, 896, 994, 1120, 1132, 1136, 1415, 1420, 1981, 1988, 2240, 2264, 2272, 2485, 2830, 2840, 3962, 3976, 4480, 4528, 4544, 4970, 5660, 5680, 7924, 7952, 9056, 9088, 9905, 9940, 11320, 11360, 15848, 15904, 18112, 19810, 19880, 20093, 22640, 22720, 31696, 31808, 36224, 39620, 39760, 40186, 45280, 45440, 63392, 63616, 79240, 79520, 80372, 90560, 100465, 126784, 140651, 158480, 159040, 160744, 181120, 200930, 253568, 281302, 316960, 318080, 321488, 401860, 562604, 633920, 642976, 703255, 803720, 1125208, 1267840, 1285952, 1406510, 1607440, 2250416, 2571904, 2813020, 3214880, 4500832, 5626040, 6429760, 9001664, 11252080, 12859520, 18003328, 22504160, 45008320, 90016640]

約数ペア:

[(1, 90016640), (2, 45008320), (4, 22504160), (5, 18003328), (7, 12859520), (8, 11252080), (10, 9001664), (14, 6429760), (16, 5626040), (20, 4500832), (28, 3214880), (32, 2813020), (35, 2571904), (40, 2250416), (56, 1607440), (64, 1406510), (70, 1285952), (71, 1267840), (80, 1125208), (112, 803720), (128, 703255), (140, 642976), (142, 633920), (160, 562604), (224, 401860), (280, 321488), (283, 318080), (284, 316960), (320, 281302), (355, 253568), (448, 200930), (497, 181120), (560, 160744), (566, 159040), (568, 158480), (640, 140651), (710, 126784), (896, 100465), (994, 90560), (1120, 80372), (1132, 79520), (1136, 79240), (1415, 63616), (1420, 63392), (1981, 45440), (1988, 45280), (2240, 40186), (2264, 39760), (2272, 39620), (2485, 36224), (2830, 31808), (2840, 31696), (3962, 22720), (3976, 22640), (4480, 20093), (4528, 19880), (4544, 19810), (4970, 18112), (5660, 15904), (5680, 15848), (7924, 11360), (7952, 11320), (9056, 9940), (9088, 9905)]