291284240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{739}}^1$

素因数の和:1144

約数の個数: 80

約数和(自身を含む): 732244800

約数和(自身を除く): 440960560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 379, 520, 739, 758, 1040, 1478, 1516, 1895, 2956, 3032, 3695, 3790, 4927, 5912, 6064, 7390, 7580, 9607, 9854, 11824, 14780, 15160, 19214, 19708, 24635, 29560, 30320, 38428, 39416, 48035, 49270, 59120, 76856, 78832, 96070, 98540, 153712, 192140, 197080, 280081, 384280, 394160, 560162, 768560, 1120324, 1400405, 2240648, 2800810, 3641053, 4481296, 5601620, 7282106, 11203240, 14564212, 18205265, 22406480, 29128424, 36410530, 58256848, 72821060, 145642120, 291284240]

約数ペア:

[(1, 291284240), (2, 145642120), (4, 72821060), (5, 58256848), (8, 36410530), (10, 29128424), (13, 22406480), (16, 18205265), (20, 14564212), (26, 11203240), (40, 7282106), (52, 5601620), (65, 4481296), (80, 3641053), (104, 2800810), (130, 2240648), (208, 1400405), (260, 1120324), (379, 768560), (520, 560162), (739, 394160), (758, 384280), (1040, 280081), (1478, 197080), (1516, 192140), (1895, 153712), (2956, 98540), (3032, 96070), (3695, 78832), (3790, 76856), (4927, 59120), (5912, 49270), (6064, 48035), (7390, 39416), (7580, 38428), (9607, 30320), (9854, 29560), (11824, 24635), (14780, 19708), (15160, 19214)]