20422816

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 42287616

約数和(自身を除く): 21864800

約数列:

[1, 2, 4, 8, 16, 32, 37, 47, 74, 94, 148, 188, 296, 367, 376, 592, 734, 752, 1184, 1468, 1504, 1739, 2936, 3478, 5872, 6956, 11744, 13579, 13912, 17249, 27158, 27824, 34498, 54316, 55648, 68996, 108632, 137992, 217264, 275984, 434528, 551968, 638213, 1276426, 2552852, 5105704, 10211408, 20422816]

約数ペア:

[(1, 20422816), (2, 10211408), (4, 5105704), (8, 2552852), (16, 1276426), (32, 638213), (37, 551968), (47, 434528), (74, 275984), (94, 217264), (148, 137992), (188, 108632), (296, 68996), (367, 55648), (376, 54316), (592, 34498), (734, 27824), (752, 27158), (1184, 17249), (1468, 13912), (1504, 13579), (1739, 11744), (2936, 6956), (3478, 5872)]