28191540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{769}}^1$

素因数の和:841

約数の個数: 96

約数和(自身を含む): 86929920

約数和(自身を除く): 58738380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 47, 52, 60, 65, 78, 94, 130, 141, 156, 188, 195, 235, 260, 282, 390, 470, 564, 611, 705, 769, 780, 940, 1222, 1410, 1538, 1833, 2307, 2444, 2820, 3055, 3076, 3666, 3845, 4614, 6110, 7332, 7690, 9165, 9228, 9997, 11535, 12220, 15380, 18330, 19994, 23070, 29991, 36143, 36660, 39988, 46140, 49985, 59982, 72286, 99970, 108429, 119964, 144572, 149955, 180715, 199940, 216858, 299910, 361430, 433716, 469859, 542145, 599820, 722860, 939718, 1084290, 1409577, 1879436, 2168580, 2349295, 2819154, 4698590, 5638308, 7047885, 9397180, 14095770, 28191540]

約数ペア:

[(1, 28191540), (2, 14095770), (3, 9397180), (4, 7047885), (5, 5638308), (6, 4698590), (10, 2819154), (12, 2349295), (13, 2168580), (15, 1879436), (20, 1409577), (26, 1084290), (30, 939718), (39, 722860), (47, 599820), (52, 542145), (60, 469859), (65, 433716), (78, 361430), (94, 299910), (130, 216858), (141, 199940), (156, 180715), (188, 149955), (195, 144572), (235, 119964), (260, 108429), (282, 99970), (390, 72286), (470, 59982), (564, 49985), (611, 46140), (705, 39988), (769, 36660), (780, 36143), (940, 29991), (1222, 23070), (1410, 19994), (1538, 18330), (1833, 15380), (2307, 12220), (2444, 11535), (2820, 9997), (3055, 9228), (3076, 9165), (3666, 7690), (3845, 7332), (4614, 6110)]