1978216996

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{17623}}^1$

素因数の和:17864

約数の個数: 48

約数和(自身を含む): 4184642560

約数和(自身を除く): 2206425564

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 211, 266, 422, 532, 844, 1477, 2954, 4009, 5908, 8018, 16036, 17623, 28063, 35246, 56126, 70492, 112252, 123361, 246722, 334837, 493444, 669674, 1339348, 2343859, 3718453, 4687718, 7436906, 9375436, 14873812, 26029171, 52058342, 70650607, 104116684, 141301214, 282602428, 494554249, 989108498, 1978216996]

約数ペア:

[(1, 1978216996), (2, 989108498), (4, 494554249), (7, 282602428), (14, 141301214), (19, 104116684), (28, 70650607), (38, 52058342), (76, 26029171), (133, 14873812), (211, 9375436), (266, 7436906), (422, 4687718), (532, 3718453), (844, 2343859), (1477, 1339348), (2954, 669674), (4009, 493444), (5908, 334837), (8018, 246722), (16036, 123361), (17623, 112252), (28063, 70492), (35246, 56126)]