2019976930

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:615

約数の個数: 64

約数和(自身を含む): 3799081440

約数和(自身を除く): 1779104510

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 197, 205, 281, 394, 410, 445, 562, 890, 985, 1405, 1970, 2810, 3649, 7298, 8077, 11521, 16154, 17533, 18245, 23042, 25009, 35066, 36490, 40385, 50018, 55357, 57605, 80770, 87665, 110714, 115210, 125045, 175330, 250090, 276785, 553570, 718853, 1025369, 1437706, 2050738, 2269637, 3594265, 4539274, 4926773, 5126845, 7188530, 9853546, 10253690, 11348185, 22696370, 24633865, 49267730, 201997693, 403995386, 1009988465, 2019976930]

約数ペア:

[(1, 2019976930), (2, 1009988465), (5, 403995386), (10, 201997693), (41, 49267730), (82, 24633865), (89, 22696370), (178, 11348185), (197, 10253690), (205, 9853546), (281, 7188530), (394, 5126845), (410, 4926773), (445, 4539274), (562, 3594265), (890, 2269637), (985, 2050738), (1405, 1437706), (1970, 1025369), (2810, 718853), (3649, 553570), (7298, 276785), (8077, 250090), (11521, 175330), (16154, 125045), (17533, 115210), (18245, 110714), (23042, 87665), (25009, 80770), (35066, 57605), (36490, 55357), (40385, 50018)]