20224664

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 41148000

約数和(自身を除く): 20923336

約数列:

[1, 2, 4, 8, 19, 38, 47, 76, 94, 149, 152, 188, 298, 361, 376, 596, 722, 893, 1192, 1444, 1786, 2831, 2888, 3572, 5662, 7003, 7144, 11324, 14006, 16967, 22648, 28012, 33934, 53789, 56024, 67868, 107578, 133057, 135736, 215156, 266114, 430312, 532228, 1064456, 2528083, 5056166, 10112332, 20224664]

約数ペア:

[(1, 20224664), (2, 10112332), (4, 5056166), (8, 2528083), (19, 1064456), (38, 532228), (47, 430312), (76, 266114), (94, 215156), (149, 135736), (152, 133057), (188, 107578), (298, 67868), (361, 56024), (376, 53789), (596, 33934), (722, 28012), (893, 22648), (1192, 16967), (1444, 14006), (1786, 11324), (2831, 7144), (2888, 7003), (3572, 5662)]