398628256

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{30911}}^1$

素因数の和:30965

約数の個数: 48

約数和(自身を含む): 872460288

約数和(自身を除く): 473832032

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1612, 3224, 6448, 12896, 30911, 61822, 123644, 247288, 401843, 494576, 803686, 958241, 989152, 1607372, 1916482, 3214744, 3832964, 6429488, 7665928, 12457133, 12858976, 15331856, 24914266, 30663712, 49828532, 99657064, 199314128, 398628256]

約数ペア:

[(1, 398628256), (2, 199314128), (4, 99657064), (8, 49828532), (13, 30663712), (16, 24914266), (26, 15331856), (31, 12858976), (32, 12457133), (52, 7665928), (62, 6429488), (104, 3832964), (124, 3214744), (208, 1916482), (248, 1607372), (403, 989152), (416, 958241), (496, 803686), (806, 494576), (992, 401843), (1612, 247288), (3224, 123644), (6448, 61822), (12896, 30911)]