20131447820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67433}}^1$

素因数の和:67535

約数の個数: 96

約数和(自身を含む): 48940899840

約数和(自身を除く): 28809452020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 59, 92, 110, 115, 118, 220, 230, 236, 253, 295, 460, 506, 590, 649, 1012, 1180, 1265, 1298, 1357, 2530, 2596, 2714, 3245, 5060, 5428, 6490, 6785, 12980, 13570, 14927, 27140, 29854, 59708, 67433, 74635, 134866, 149270, 269732, 298540, 337165, 674330, 741763, 1348660, 1483526, 1550959, 2967052, 3101918, 3708815, 3978547, 6203836, 7417630, 7754795, 7957094, 14835260, 15509590, 15914188, 17060549, 19892735, 31019180, 34121098, 39785470, 43764017, 68242196, 79570940, 85302745, 87528034, 91506581, 170605490, 175056068, 183013162, 218820085, 341210980, 366026324, 437640170, 457532905, 875280340, 915065810, 1006572391, 1830131620, 2013144782, 4026289564, 5032861955, 10065723910, 20131447820]

約数ペア:

[(1, 20131447820), (2, 10065723910), (4, 5032861955), (5, 4026289564), (10, 2013144782), (11, 1830131620), (20, 1006572391), (22, 915065810), (23, 875280340), (44, 457532905), (46, 437640170), (55, 366026324), (59, 341210980), (92, 218820085), (110, 183013162), (115, 175056068), (118, 170605490), (220, 91506581), (230, 87528034), (236, 85302745), (253, 79570940), (295, 68242196), (460, 43764017), (506, 39785470), (590, 34121098), (649, 31019180), (1012, 19892735), (1180, 17060549), (1265, 15914188), (1298, 15509590), (1357, 14835260), (2530, 7957094), (2596, 7754795), (2714, 7417630), (3245, 6203836), (5060, 3978547), (5428, 3708815), (6490, 3101918), (6785, 2967052), (12980, 1550959), (13570, 1483526), (14927, 1348660), (27140, 741763), (29854, 674330), (59708, 337165), (67433, 298540), (74635, 269732), (134866, 149270)]