20614620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 66407040

約数和(自身を除く): 45792420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 107, 114, 130, 156, 169, 190, 195, 214, 228, 247, 260, 285, 321, 338, 380, 390, 428, 494, 507, 535, 570, 642, 676, 741, 780, 845, 988, 1014, 1070, 1140, 1235, 1284, 1391, 1482, 1605, 1690, 2028, 2033, 2140, 2470, 2535, 2782, 2964, 3210, 3211, 3380, 3705, 4066, 4173, 4940, 5070, 5564, 6099, 6420, 6422, 6955, 7410, 8132, 8346, 9633, 10140, 10165, 12198, 12844, 13910, 14820, 16055, 16692, 18083, 19266, 20330, 20865, 24396, 26429, 27820, 30495, 32110, 36166, 38532, 40660, 41730, 48165, 52858, 54249, 60990, 64220, 72332, 79287, 83460, 90415, 96330, 105716, 108498, 121980, 132145, 158574, 180830, 192660, 216996, 264290, 271245, 317148, 343577, 361660, 396435, 528580, 542490, 687154, 792870, 1030731, 1084980, 1374308, 1585740, 1717885, 2061462, 3435770, 4122924, 5153655, 6871540, 10307310, 20614620]

約数ペア:

[(1, 20614620), (2, 10307310), (3, 6871540), (4, 5153655), (5, 4122924), (6, 3435770), (10, 2061462), (12, 1717885), (13, 1585740), (15, 1374308), (19, 1084980), (20, 1030731), (26, 792870), (30, 687154), (38, 542490), (39, 528580), (52, 396435), (57, 361660), (60, 343577), (65, 317148), (76, 271245), (78, 264290), (95, 216996), (107, 192660), (114, 180830), (130, 158574), (156, 132145), (169, 121980), (190, 108498), (195, 105716), (214, 96330), (228, 90415), (247, 83460), (260, 79287), (285, 72332), (321, 64220), (338, 60990), (380, 54249), (390, 52858), (428, 48165), (494, 41730), (507, 40660), (535, 38532), (570, 36166), (642, 32110), (676, 30495), (741, 27820), (780, 26429), (845, 24396), (988, 20865), (1014, 20330), (1070, 19266), (1140, 18083), (1235, 16692), (1284, 16055), (1391, 14820), (1482, 13910), (1605, 12844), (1690, 12198), (2028, 10165), (2033, 10140), (2140, 9633), (2470, 8346), (2535, 8132), (2782, 7410), (2964, 6955), (3210, 6422), (3211, 6420), (3380, 6099), (3705, 5564), (4066, 5070), (4173, 4940)]