890391920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 160

約数和(自身を含む): 2358706176

約数和(自身を除く): 1468314256

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 127, 155, 176, 220, 248, 254, 257, 310, 341, 440, 496, 508, 514, 620, 635, 682, 880, 1016, 1028, 1240, 1270, 1285, 1364, 1397, 1705, 2032, 2056, 2480, 2540, 2570, 2728, 2794, 2827, 3410, 3937, 4112, 5080, 5140, 5456, 5588, 5654, 6820, 6985, 7874, 7967, 10160, 10280, 11176, 11308, 13640, 13970, 14135, 15748, 15934, 19685, 20560, 22352, 22616, 27280, 27940, 28270, 31496, 31868, 32639, 39370, 39835, 43307, 45232, 55880, 56540, 62992, 63736, 65278, 78740, 79670, 86614, 87637, 111760, 113080, 127472, 130556, 157480, 159340, 163195, 173228, 175274, 216535, 226160, 261112, 314960, 318680, 326390, 346456, 350548, 359029, 433070, 438185, 522224, 637360, 652780, 692912, 701096, 718058, 866140, 876370, 1011809, 1305560, 1402192, 1436116, 1732280, 1752740, 1795145, 2023618, 2611120, 2872232, 3464560, 3505480, 3590290, 4047236, 5059045, 5744464, 7010960, 7180580, 8094472, 10118090, 11129899, 14361160, 16188944, 20236180, 22259798, 28722320, 40472360, 44519596, 55649495, 80944720, 89039192, 111298990, 178078384, 222597980, 445195960, 890391920]

約数ペア:

[(1, 890391920), (2, 445195960), (4, 222597980), (5, 178078384), (8, 111298990), (10, 89039192), (11, 80944720), (16, 55649495), (20, 44519596), (22, 40472360), (31, 28722320), (40, 22259798), (44, 20236180), (55, 16188944), (62, 14361160), (80, 11129899), (88, 10118090), (110, 8094472), (124, 7180580), (127, 7010960), (155, 5744464), (176, 5059045), (220, 4047236), (248, 3590290), (254, 3505480), (257, 3464560), (310, 2872232), (341, 2611120), (440, 2023618), (496, 1795145), (508, 1752740), (514, 1732280), (620, 1436116), (635, 1402192), (682, 1305560), (880, 1011809), (1016, 876370), (1028, 866140), (1240, 718058), (1270, 701096), (1285, 692912), (1364, 652780), (1397, 637360), (1705, 522224), (2032, 438185), (2056, 433070), (2480, 359029), (2540, 350548), (2570, 346456), (2728, 326390), (2794, 318680), (2827, 314960), (3410, 261112), (3937, 226160), (4112, 216535), (5080, 175274), (5140, 173228), (5456, 163195), (5588, 159340), (5654, 157480), (6820, 130556), (6985, 127472), (7874, 113080), (7967, 111760), (10160, 87637), (10280, 86614), (11176, 79670), (11308, 78740), (13640, 65278), (13970, 63736), (14135, 62992), (15748, 56540), (15934, 55880), (19685, 45232), (20560, 43307), (22352, 39835), (22616, 39370), (27280, 32639), (27940, 31868), (28270, 31496)]