398501908

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 836559360

約数和(自身を除く): 438057452

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 181, 188, 196, 239, 329, 362, 478, 658, 724, 956, 1267, 1316, 1673, 2303, 2534, 3346, 4606, 5068, 6692, 8507, 8869, 9212, 11233, 11711, 17014, 17738, 22466, 23422, 34028, 35476, 43259, 44932, 46844, 59549, 78631, 86518, 119098, 157262, 173036, 238196, 302813, 314524, 416843, 550417, 605626, 833686, 1100834, 1211252, 1667372, 2033173, 2119691, 2201668, 4066346, 4239382, 8132692, 8478764, 14232211, 28464422, 56928844, 99625477, 199250954, 398501908]

約数ペア:

[(1, 398501908), (2, 199250954), (4, 99625477), (7, 56928844), (14, 28464422), (28, 14232211), (47, 8478764), (49, 8132692), (94, 4239382), (98, 4066346), (181, 2201668), (188, 2119691), (196, 2033173), (239, 1667372), (329, 1211252), (362, 1100834), (478, 833686), (658, 605626), (724, 550417), (956, 416843), (1267, 314524), (1316, 302813), (1673, 238196), (2303, 173036), (2534, 157262), (3346, 119098), (4606, 86518), (5068, 78631), (6692, 59549), (8507, 46844), (8869, 44932), (9212, 43259), (11233, 35476), (11711, 34028), (17014, 23422), (17738, 22466)]