401011394

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1999}}^1$

素因数の和:2127

約数の個数: 48

約数和(自身を含む): 738720000

約数和(自身を除く): 337708606

約数列:

[1, 2, 7, 14, 23, 46, 49, 89, 98, 161, 178, 322, 623, 1127, 1246, 1999, 2047, 2254, 3998, 4094, 4361, 8722, 13993, 14329, 27986, 28658, 45977, 91954, 97951, 100303, 177911, 195902, 200606, 321839, 355822, 643678, 1245377, 2252873, 2490754, 4091953, 4505746, 8183906, 8717639, 17435278, 28643671, 57287342, 200505697, 401011394]

約数ペア:

[(1, 401011394), (2, 200505697), (7, 57287342), (14, 28643671), (23, 17435278), (46, 8717639), (49, 8183906), (89, 4505746), (98, 4091953), (161, 2490754), (178, 2252873), (322, 1245377), (623, 643678), (1127, 355822), (1246, 321839), (1999, 200606), (2047, 195902), (2254, 177911), (3998, 100303), (4094, 97951), (4361, 91954), (8722, 45977), (13993, 28658), (14329, 27986)]