20661528

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 55404000

約数和(自身を除く): 34742472

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 89, 102, 136, 178, 204, 267, 356, 408, 534, 569, 712, 1068, 1138, 1513, 1707, 2136, 2276, 3026, 3414, 4539, 4552, 6052, 6828, 9078, 9673, 12104, 13656, 18156, 19346, 29019, 36312, 38692, 50641, 58038, 77384, 101282, 116076, 151923, 202564, 232152, 303846, 405128, 607692, 860897, 1215384, 1721794, 2582691, 3443588, 5165382, 6887176, 10330764, 20661528]

約数ペア:

[(1, 20661528), (2, 10330764), (3, 6887176), (4, 5165382), (6, 3443588), (8, 2582691), (12, 1721794), (17, 1215384), (24, 860897), (34, 607692), (51, 405128), (68, 303846), (89, 232152), (102, 202564), (136, 151923), (178, 116076), (204, 101282), (267, 77384), (356, 58038), (408, 50641), (534, 38692), (569, 36312), (712, 29019), (1068, 19346), (1138, 18156), (1513, 13656), (1707, 12104), (2136, 9673), (2276, 9078), (3026, 6828), (3414, 6052), (4539, 4552)]