2019955784

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{761}}^1$

素因数の和:955

約数の個数: 128

約数和(自身を含む): 4915814400

約数和(自身を除く): 2895858616

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 139, 154, 217, 248, 278, 308, 341, 434, 556, 616, 682, 761, 868, 973, 1112, 1364, 1522, 1529, 1736, 1946, 2387, 2728, 3044, 3058, 3892, 4309, 4774, 5327, 6088, 6116, 7784, 8371, 8618, 9548, 10654, 10703, 12232, 16742, 17236, 19096, 21308, 21406, 23591, 30163, 33484, 34472, 42616, 42812, 47182, 47399, 58597, 60326, 66968, 85624, 94364, 94798, 105779, 117194, 120652, 165137, 188728, 189596, 211558, 234388, 241304, 259501, 330274, 331793, 379192, 423116, 468776, 519002, 660548, 663586, 740453, 846232, 1038004, 1163569, 1321096, 1327172, 1480906, 1816507, 2076008, 2327138, 2654344, 2961812, 3279149, 3633014, 4654276, 5923624, 6558298, 7266028, 8144983, 9308552, 13116596, 14532056, 16289966, 22954043, 26233192, 32579932, 36070639, 45908086, 65159864, 72141278, 91816172, 144282556, 183632344, 252494473, 288565112, 504988946, 1009977892, 2019955784]

約数ペア:

[(1, 2019955784), (2, 1009977892), (4, 504988946), (7, 288565112), (8, 252494473), (11, 183632344), (14, 144282556), (22, 91816172), (28, 72141278), (31, 65159864), (44, 45908086), (56, 36070639), (62, 32579932), (77, 26233192), (88, 22954043), (124, 16289966), (139, 14532056), (154, 13116596), (217, 9308552), (248, 8144983), (278, 7266028), (308, 6558298), (341, 5923624), (434, 4654276), (556, 3633014), (616, 3279149), (682, 2961812), (761, 2654344), (868, 2327138), (973, 2076008), (1112, 1816507), (1364, 1480906), (1522, 1327172), (1529, 1321096), (1736, 1163569), (1946, 1038004), (2387, 846232), (2728, 740453), (3044, 663586), (3058, 660548), (3892, 519002), (4309, 468776), (4774, 423116), (5327, 379192), (6088, 331793), (6116, 330274), (7784, 259501), (8371, 241304), (8618, 234388), (9548, 211558), (10654, 189596), (10703, 188728), (12232, 165137), (16742, 120652), (17236, 117194), (19096, 105779), (21308, 94798), (21406, 94364), (23591, 85624), (30163, 66968), (33484, 60326), (34472, 58597), (42616, 47399), (42812, 47182)]