31195520

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 75643200

約数和(自身を除く): 44447680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 617, 632, 640, 790, 1234, 1264, 1580, 2468, 2528, 3085, 3160, 4936, 5056, 6170, 6320, 9872, 10112, 12340, 12640, 19744, 24680, 25280, 39488, 48743, 49360, 50560, 78976, 97486, 98720, 194972, 197440, 243715, 389944, 394880, 487430, 779888, 974860, 1559776, 1949720, 3119552, 3899440, 6239104, 7798880, 15597760, 31195520]

約数ペア:

[(1, 31195520), (2, 15597760), (4, 7798880), (5, 6239104), (8, 3899440), (10, 3119552), (16, 1949720), (20, 1559776), (32, 974860), (40, 779888), (64, 487430), (79, 394880), (80, 389944), (128, 243715), (158, 197440), (160, 194972), (316, 98720), (320, 97486), (395, 78976), (617, 50560), (632, 49360), (640, 48743), (790, 39488), (1234, 25280), (1264, 24680), (1580, 19744), (2468, 12640), (2528, 12340), (3085, 10112), (3160, 9872), (4936, 6320), (5056, 6170)]