221432120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:637

約数の個数: 128

約数和(自身を含む): 619315200

約数和(自身を除く): 397883080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 127, 130, 140, 182, 254, 260, 280, 364, 455, 479, 508, 520, 635, 728, 889, 910, 958, 1016, 1270, 1651, 1778, 1820, 1916, 2395, 2540, 3302, 3353, 3556, 3640, 3832, 4445, 4790, 5080, 6227, 6604, 6706, 7112, 8255, 8890, 9580, 11557, 12454, 13208, 13412, 16510, 16765, 17780, 19160, 23114, 24908, 26824, 31135, 33020, 33530, 35560, 43589, 46228, 49816, 57785, 60833, 62270, 66040, 67060, 87178, 92456, 115570, 121666, 124540, 134120, 174356, 217945, 231140, 243332, 249080, 304165, 348712, 425831, 435890, 462280, 486664, 608330, 790829, 851662, 871780, 1216660, 1581658, 1703324, 1743560, 2129155, 2433320, 3163316, 3406648, 3954145, 4258310, 5535803, 6326632, 7908290, 8516620, 11071606, 15816580, 17033240, 22143212, 27679015, 31633160, 44286424, 55358030, 110716060, 221432120]

約数ペア:

[(1, 221432120), (2, 110716060), (4, 55358030), (5, 44286424), (7, 31633160), (8, 27679015), (10, 22143212), (13, 17033240), (14, 15816580), (20, 11071606), (26, 8516620), (28, 7908290), (35, 6326632), (40, 5535803), (52, 4258310), (56, 3954145), (65, 3406648), (70, 3163316), (91, 2433320), (104, 2129155), (127, 1743560), (130, 1703324), (140, 1581658), (182, 1216660), (254, 871780), (260, 851662), (280, 790829), (364, 608330), (455, 486664), (479, 462280), (508, 435890), (520, 425831), (635, 348712), (728, 304165), (889, 249080), (910, 243332), (958, 231140), (1016, 217945), (1270, 174356), (1651, 134120), (1778, 124540), (1820, 121666), (1916, 115570), (2395, 92456), (2540, 87178), (3302, 67060), (3353, 66040), (3556, 62270), (3640, 60833), (3832, 57785), (4445, 49816), (4790, 46228), (5080, 43589), (6227, 35560), (6604, 33530), (6706, 33020), (7112, 31135), (8255, 26824), (8890, 24908), (9580, 23114), (11557, 19160), (12454, 17780), (13208, 16765), (13412, 16510)]