19945836976

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{13997}}^1$

素因数の和:14079

約数の個数: 120

約数和(自身を含む): 45740536704

約数和(自身を除く): 25794699728

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 169, 208, 221, 248, 272, 338, 403, 442, 496, 527, 676, 806, 884, 1054, 1352, 1612, 1768, 2108, 2704, 2873, 3224, 3536, 4216, 5239, 5746, 6448, 6851, 8432, 10478, 11492, 13702, 13997, 20956, 22984, 27404, 27994, 41912, 45968, 54808, 55988, 83824, 89063, 109616, 111976, 178126, 181961, 223952, 237949, 356252, 363922, 433907, 475898, 712504, 727844, 867814, 951796, 1425008, 1455688, 1735628, 1903592, 2365493, 2911376, 3093337, 3471256, 3807184, 4730986, 5640791, 6186674, 6942512, 7376419, 9461972, 11281582, 12373348, 14752838, 18923944, 22563164, 24746696, 29505676, 37847888, 40213381, 45126328, 49493392, 59011352, 73330283, 80426762, 90252656, 95893447, 118022704, 146660566, 160853524, 191786894, 293321132, 321707048, 383573788, 586642264, 643414096, 767147576, 1173284528, 1246614811, 1534295152, 2493229622, 4986459244, 9972918488, 19945836976]

約数ペア:

[(1, 19945836976), (2, 9972918488), (4, 4986459244), (8, 2493229622), (13, 1534295152), (16, 1246614811), (17, 1173284528), (26, 767147576), (31, 643414096), (34, 586642264), (52, 383573788), (62, 321707048), (68, 293321132), (104, 191786894), (124, 160853524), (136, 146660566), (169, 118022704), (208, 95893447), (221, 90252656), (248, 80426762), (272, 73330283), (338, 59011352), (403, 49493392), (442, 45126328), (496, 40213381), (527, 37847888), (676, 29505676), (806, 24746696), (884, 22563164), (1054, 18923944), (1352, 14752838), (1612, 12373348), (1768, 11281582), (2108, 9461972), (2704, 7376419), (2873, 6942512), (3224, 6186674), (3536, 5640791), (4216, 4730986), (5239, 3807184), (5746, 3471256), (6448, 3093337), (6851, 2911376), (8432, 2365493), (10478, 1903592), (11492, 1735628), (13702, 1455688), (13997, 1425008), (20956, 951796), (22984, 867814), (27404, 727844), (27994, 712504), (41912, 475898), (45968, 433907), (54808, 363922), (55988, 356252), (83824, 237949), (89063, 223952), (109616, 181961), (111976, 178126)]