7489040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:424

約数の個数: 80

約数和(自身を含む): 19790400

約数和(自身を除く): 12301360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 379, 380, 494, 520, 758, 760, 988, 1040, 1235, 1516, 1520, 1895, 1976, 2470, 3032, 3790, 3952, 4927, 4940, 6064, 7201, 7580, 9854, 9880, 14402, 15160, 19708, 19760, 24635, 28804, 30320, 36005, 39416, 49270, 57608, 72010, 78832, 93613, 98540, 115216, 144020, 187226, 197080, 288040, 374452, 394160, 468065, 576080, 748904, 936130, 1497808, 1872260, 3744520, 7489040]

約数ペア:

[(1, 7489040), (2, 3744520), (4, 1872260), (5, 1497808), (8, 936130), (10, 748904), (13, 576080), (16, 468065), (19, 394160), (20, 374452), (26, 288040), (38, 197080), (40, 187226), (52, 144020), (65, 115216), (76, 98540), (80, 93613), (95, 78832), (104, 72010), (130, 57608), (152, 49270), (190, 39416), (208, 36005), (247, 30320), (260, 28804), (304, 24635), (379, 19760), (380, 19708), (494, 15160), (520, 14402), (758, 9880), (760, 9854), (988, 7580), (1040, 7201), (1235, 6064), (1516, 4940), (1520, 4927), (1895, 3952), (1976, 3790), (2470, 3032)]