12129220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 27316800

約数和(自身を除く): 15187580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 380, 541, 590, 1082, 1121, 1180, 2164, 2242, 2705, 4484, 5410, 5605, 10279, 10820, 11210, 20558, 22420, 31919, 41116, 51395, 63838, 102790, 127676, 159595, 205580, 319190, 606461, 638380, 1212922, 2425844, 3032305, 6064610, 12129220]

約数ペア:

[(1, 12129220), (2, 6064610), (4, 3032305), (5, 2425844), (10, 1212922), (19, 638380), (20, 606461), (38, 319190), (59, 205580), (76, 159595), (95, 127676), (118, 102790), (190, 63838), (236, 51395), (295, 41116), (380, 31919), (541, 22420), (590, 20558), (1082, 11210), (1121, 10820), (1180, 10279), (2164, 5605), (2242, 5410), (2705, 4484)]