257886860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1109}}^1$

素因数の和:1287

約数の個数: 96

約数和(自身を含む): 680279040

約数和(自身を除く): 422392180

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 151, 154, 220, 302, 308, 385, 604, 755, 770, 1057, 1109, 1510, 1540, 1661, 2114, 2218, 3020, 3322, 4228, 4436, 5285, 5545, 6644, 7763, 8305, 10570, 11090, 11627, 12199, 15526, 16610, 21140, 22180, 23254, 24398, 31052, 33220, 38815, 46508, 48796, 58135, 60995, 77630, 85393, 116270, 121990, 155260, 167459, 170786, 232540, 243980, 334918, 341572, 426965, 669836, 837295, 853930, 1172213, 1674590, 1707860, 1842049, 2344426, 3349180, 3684098, 4688852, 5861065, 7368196, 9210245, 11722130, 12894343, 18420490, 23444260, 25788686, 36840980, 51577372, 64471715, 128943430, 257886860]

約数ペア:

[(1, 257886860), (2, 128943430), (4, 64471715), (5, 51577372), (7, 36840980), (10, 25788686), (11, 23444260), (14, 18420490), (20, 12894343), (22, 11722130), (28, 9210245), (35, 7368196), (44, 5861065), (55, 4688852), (70, 3684098), (77, 3349180), (110, 2344426), (140, 1842049), (151, 1707860), (154, 1674590), (220, 1172213), (302, 853930), (308, 837295), (385, 669836), (604, 426965), (755, 341572), (770, 334918), (1057, 243980), (1109, 232540), (1510, 170786), (1540, 167459), (1661, 155260), (2114, 121990), (2218, 116270), (3020, 85393), (3322, 77630), (4228, 60995), (4436, 58135), (5285, 48796), (5545, 46508), (6644, 38815), (7763, 33220), (8305, 31052), (10570, 24398), (11090, 23254), (11627, 22180), (12199, 21140), (15526, 16610)]