1728595840

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:468

約数の個数: 128

約数和(自身を含む): 4230144000

約数和(自身を除く): 2501548160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 179, 191, 316, 320, 358, 382, 395, 632, 640, 716, 764, 790, 895, 955, 1264, 1432, 1528, 1580, 1790, 1910, 2528, 2864, 3056, 3160, 3580, 3820, 5056, 5728, 6112, 6320, 7160, 7640, 10112, 11456, 12224, 12640, 14141, 14320, 15089, 15280, 22912, 24448, 25280, 28282, 28640, 30178, 30560, 34189, 50560, 56564, 57280, 60356, 61120, 68378, 70705, 75445, 113128, 114560, 120712, 122240, 136756, 141410, 150890, 170945, 226256, 241424, 273512, 282820, 301780, 341890, 452512, 482848, 547024, 565640, 603560, 683780, 905024, 965696, 1094048, 1131280, 1207120, 1367560, 1810048, 1931392, 2188096, 2262560, 2414240, 2700931, 2735120, 4376192, 4525120, 4828480, 5401862, 5470240, 9050240, 9656960, 10803724, 10940480, 13504655, 21607448, 21880960, 27009310, 43214896, 54018620, 86429792, 108037240, 172859584, 216074480, 345719168, 432148960, 864297920, 1728595840]

約数ペア:

[(1, 1728595840), (2, 864297920), (4, 432148960), (5, 345719168), (8, 216074480), (10, 172859584), (16, 108037240), (20, 86429792), (32, 54018620), (40, 43214896), (64, 27009310), (79, 21880960), (80, 21607448), (128, 13504655), (158, 10940480), (160, 10803724), (179, 9656960), (191, 9050240), (316, 5470240), (320, 5401862), (358, 4828480), (382, 4525120), (395, 4376192), (632, 2735120), (640, 2700931), (716, 2414240), (764, 2262560), (790, 2188096), (895, 1931392), (955, 1810048), (1264, 1367560), (1432, 1207120), (1528, 1131280), (1580, 1094048), (1790, 965696), (1910, 905024), (2528, 683780), (2864, 603560), (3056, 565640), (3160, 547024), (3580, 482848), (3820, 452512), (5056, 341890), (5728, 301780), (6112, 282820), (6320, 273512), (7160, 241424), (7640, 226256), (10112, 170945), (11456, 150890), (12224, 141410), (12640, 136756), (14141, 122240), (14320, 120712), (15089, 114560), (15280, 113128), (22912, 75445), (24448, 70705), (25280, 68378), (28282, 61120), (28640, 60356), (30178, 57280), (30560, 56564), (34189, 50560)]