78376480

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:811

約数の個数: 144

約数和(自身を含む): 232265880

約数和(自身を除く): 153889400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 769, 784, 910, 980, 1040, 1120, 1274, 1456, 1538, 1568, 1820, 1960, 2080, 2548, 2912, 3076, 3185, 3640, 3845, 3920, 5096, 5383, 6152, 6370, 7280, 7690, 7840, 9997, 10192, 10766, 12304, 12740, 14560, 15380, 19994, 20384, 21532, 24608, 25480, 26915, 30760, 37681, 39988, 43064, 49985, 50960, 53830, 61520, 69979, 75362, 79976, 86128, 99970, 101920, 107660, 123040, 139958, 150724, 159952, 172256, 188405, 199940, 215320, 279916, 301448, 319904, 349895, 376810, 399880, 430640, 489853, 559832, 602896, 699790, 753620, 799760, 861280, 979706, 1119664, 1205792, 1399580, 1507240, 1599520, 1959412, 2239328, 2449265, 2799160, 3014480, 3918824, 4898530, 5598320, 6028960, 7837648, 9797060, 11196640, 15675296, 19594120, 39188240, 78376480]

約数ペア:

[(1, 78376480), (2, 39188240), (4, 19594120), (5, 15675296), (7, 11196640), (8, 9797060), (10, 7837648), (13, 6028960), (14, 5598320), (16, 4898530), (20, 3918824), (26, 3014480), (28, 2799160), (32, 2449265), (35, 2239328), (40, 1959412), (49, 1599520), (52, 1507240), (56, 1399580), (65, 1205792), (70, 1119664), (80, 979706), (91, 861280), (98, 799760), (104, 753620), (112, 699790), (130, 602896), (140, 559832), (160, 489853), (182, 430640), (196, 399880), (208, 376810), (224, 349895), (245, 319904), (260, 301448), (280, 279916), (364, 215320), (392, 199940), (416, 188405), (455, 172256), (490, 159952), (520, 150724), (560, 139958), (637, 123040), (728, 107660), (769, 101920), (784, 99970), (910, 86128), (980, 79976), (1040, 75362), (1120, 69979), (1274, 61520), (1456, 53830), (1538, 50960), (1568, 49985), (1820, 43064), (1960, 39988), (2080, 37681), (2548, 30760), (2912, 26915), (3076, 25480), (3185, 24608), (3640, 21532), (3845, 20384), (3920, 19994), (5096, 15380), (5383, 14560), (6152, 12740), (6370, 12304), (7280, 10766), (7690, 10192), (7840, 9997)]