256152820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3539}}^1$

素因数の和:3613

約数の個数: 96

約数和(自身を含む): 685117440

約数和(自身を除く): 428964620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 47, 55, 70, 77, 94, 110, 140, 154, 188, 220, 235, 308, 329, 385, 470, 517, 658, 770, 940, 1034, 1316, 1540, 1645, 2068, 2585, 3290, 3539, 3619, 5170, 6580, 7078, 7238, 10340, 14156, 14476, 17695, 18095, 24773, 35390, 36190, 38929, 49546, 70780, 72380, 77858, 99092, 123865, 155716, 166333, 194645, 247730, 272503, 332666, 389290, 495460, 545006, 665332, 778580, 831665, 1090012, 1164331, 1362515, 1663330, 1829663, 2328662, 2725030, 3326660, 3659326, 4657324, 5450060, 5821655, 7318652, 9148315, 11643310, 12807641, 18296630, 23286620, 25615282, 36593260, 51230564, 64038205, 128076410, 256152820]

約数ペア:

[(1, 256152820), (2, 128076410), (4, 64038205), (5, 51230564), (7, 36593260), (10, 25615282), (11, 23286620), (14, 18296630), (20, 12807641), (22, 11643310), (28, 9148315), (35, 7318652), (44, 5821655), (47, 5450060), (55, 4657324), (70, 3659326), (77, 3326660), (94, 2725030), (110, 2328662), (140, 1829663), (154, 1663330), (188, 1362515), (220, 1164331), (235, 1090012), (308, 831665), (329, 778580), (385, 665332), (470, 545006), (517, 495460), (658, 389290), (770, 332666), (940, 272503), (1034, 247730), (1316, 194645), (1540, 166333), (1645, 155716), (2068, 123865), (2585, 99092), (3290, 77858), (3539, 72380), (3619, 70780), (5170, 49546), (6580, 38929), (7078, 36190), (7238, 35390), (10340, 24773), (14156, 18095), (14476, 17695)]