78399916

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 168465920

約数和(自身を除く): 90066004

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 67, 79, 92, 134, 158, 161, 268, 316, 322, 469, 529, 553, 644, 938, 1058, 1106, 1541, 1817, 1876, 2116, 2212, 3082, 3634, 3703, 5293, 6164, 7268, 7406, 10586, 10787, 12719, 14812, 21172, 21574, 25438, 35443, 37051, 41791, 43148, 50876, 70886, 74102, 83582, 121739, 141772, 148204, 167164, 243478, 248101, 292537, 486956, 496202, 585074, 852173, 992404, 1170148, 1704346, 2799997, 3408692, 5599994, 11199988, 19599979, 39199958, 78399916]

約数ペア:

[(1, 78399916), (2, 39199958), (4, 19599979), (7, 11199988), (14, 5599994), (23, 3408692), (28, 2799997), (46, 1704346), (67, 1170148), (79, 992404), (92, 852173), (134, 585074), (158, 496202), (161, 486956), (268, 292537), (316, 248101), (322, 243478), (469, 167164), (529, 148204), (553, 141772), (644, 121739), (938, 83582), (1058, 74102), (1106, 70886), (1541, 50876), (1817, 43148), (1876, 41791), (2116, 37051), (2212, 35443), (3082, 25438), (3634, 21574), (3703, 21172), (5293, 14812), (6164, 12719), (7268, 10787), (7406, 10586)]