398945352

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1278671}}^1$

素因数の和:1278693

約数の個数: 32

約数和(自身を含む): 1074084480

約数和(自身を除く): 675139128

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 1278671, 2557342, 3836013, 5114684, 7672026, 10229368, 15344052, 16622723, 30688104, 33245446, 49868169, 66490892, 99736338, 132981784, 199472676, 398945352]

約数ペア:

[(1, 398945352), (2, 199472676), (3, 132981784), (4, 99736338), (6, 66490892), (8, 49868169), (12, 33245446), (13, 30688104), (24, 16622723), (26, 15344052), (39, 10229368), (52, 7672026), (78, 5114684), (104, 3836013), (156, 2557342), (312, 1278671)]