256055100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{121931}}^1$

素因数の和:121955

約数の個数: 72

約数和(自身を含む): 846695808

約数和(自身を除く): 590640708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 121931, 243862, 365793, 487724, 609655, 731586, 853517, 1219310, 1463172, 1707034, 1828965, 2438620, 2560551, 3048275, 3414068, 3657930, 4267585, 5121102, 6096550, 7315860, 8535170, 9144825, 10242204, 12193100, 12802755, 17070340, 18289650, 21337925, 25605510, 36579300, 42675850, 51211020, 64013775, 85351700, 128027550, 256055100]

約数ペア:

[(1, 256055100), (2, 128027550), (3, 85351700), (4, 64013775), (5, 51211020), (6, 42675850), (7, 36579300), (10, 25605510), (12, 21337925), (14, 18289650), (15, 17070340), (20, 12802755), (21, 12193100), (25, 10242204), (28, 9144825), (30, 8535170), (35, 7315860), (42, 6096550), (50, 5121102), (60, 4267585), (70, 3657930), (75, 3414068), (84, 3048275), (100, 2560551), (105, 2438620), (140, 1828965), (150, 1707034), (175, 1463172), (210, 1219310), (300, 853517), (350, 731586), (420, 609655), (525, 487724), (700, 365793), (1050, 243862), (2100, 121931)]