398197936

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{3989}}^1$

素因数の和:4381

約数の個数: 40

約数和(自身を含む): 819322560

約数和(自身を除く): 421124624

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 367, 734, 1468, 2936, 3989, 5872, 6239, 7978, 12478, 15956, 24956, 31912, 49912, 63824, 67813, 99824, 135626, 271252, 542504, 1085008, 1463963, 2927926, 5855852, 11711704, 23423408, 24887371, 49774742, 99549484, 199098968, 398197936]

約数ペア:

[(1, 398197936), (2, 199098968), (4, 99549484), (8, 49774742), (16, 24887371), (17, 23423408), (34, 11711704), (68, 5855852), (136, 2927926), (272, 1463963), (367, 1085008), (734, 542504), (1468, 271252), (2936, 135626), (3989, 99824), (5872, 67813), (6239, 63824), (7978, 49912), (12478, 31912), (15956, 24956)]