258659920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{449}}^1$

素因数の和:860

約数の個数: 80

約数和(自身を含む): 636120000

約数和(自身を除く): 377460080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 379, 380, 449, 758, 760, 898, 1516, 1520, 1796, 1895, 2245, 3032, 3592, 3790, 4490, 6064, 7184, 7201, 7580, 8531, 8980, 14402, 15160, 17062, 17960, 28804, 30320, 34124, 35920, 36005, 42655, 57608, 68248, 72010, 85310, 115216, 136496, 144020, 170171, 170620, 288040, 340342, 341240, 576080, 680684, 682480, 850855, 1361368, 1701710, 2722736, 3233249, 3403420, 6466498, 6806840, 12932996, 13613680, 16166245, 25865992, 32332490, 51731984, 64664980, 129329960, 258659920]

約数ペア:

[(1, 258659920), (2, 129329960), (4, 64664980), (5, 51731984), (8, 32332490), (10, 25865992), (16, 16166245), (19, 13613680), (20, 12932996), (38, 6806840), (40, 6466498), (76, 3403420), (80, 3233249), (95, 2722736), (152, 1701710), (190, 1361368), (304, 850855), (379, 682480), (380, 680684), (449, 576080), (758, 341240), (760, 340342), (898, 288040), (1516, 170620), (1520, 170171), (1796, 144020), (1895, 136496), (2245, 115216), (3032, 85310), (3592, 72010), (3790, 68248), (4490, 57608), (6064, 42655), (7184, 36005), (7201, 35920), (7580, 34124), (8531, 30320), (8980, 28804), (14402, 17960), (15160, 17062)]