19656640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 112

約数和(自身を含む): 51023520

約数和(自身を除く): 31366880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 53, 61, 64, 76, 80, 95, 106, 122, 152, 160, 190, 212, 244, 265, 304, 305, 320, 380, 424, 488, 530, 608, 610, 760, 848, 976, 1007, 1060, 1159, 1216, 1220, 1520, 1696, 1952, 2014, 2120, 2318, 2440, 3040, 3233, 3392, 3904, 4028, 4240, 4636, 4880, 5035, 5795, 6080, 6466, 8056, 8480, 9272, 9760, 10070, 11590, 12932, 16112, 16165, 16960, 18544, 19520, 20140, 23180, 25864, 32224, 32330, 37088, 40280, 46360, 51728, 61427, 64448, 64660, 74176, 80560, 92720, 103456, 122854, 129320, 161120, 185440, 206912, 245708, 258640, 307135, 322240, 370880, 491416, 517280, 614270, 982832, 1034560, 1228540, 1965664, 2457080, 3931328, 4914160, 9828320, 19656640]

約数ペア:

[(1, 19656640), (2, 9828320), (4, 4914160), (5, 3931328), (8, 2457080), (10, 1965664), (16, 1228540), (19, 1034560), (20, 982832), (32, 614270), (38, 517280), (40, 491416), (53, 370880), (61, 322240), (64, 307135), (76, 258640), (80, 245708), (95, 206912), (106, 185440), (122, 161120), (152, 129320), (160, 122854), (190, 103456), (212, 92720), (244, 80560), (265, 74176), (304, 64660), (305, 64448), (320, 61427), (380, 51728), (424, 46360), (488, 40280), (530, 37088), (608, 32330), (610, 32224), (760, 25864), (848, 23180), (976, 20140), (1007, 19520), (1060, 18544), (1159, 16960), (1216, 16165), (1220, 16112), (1520, 12932), (1696, 11590), (1952, 10070), (2014, 9760), (2120, 9272), (2318, 8480), (2440, 8056), (3040, 6466), (3233, 6080), (3392, 5795), (3904, 5035), (4028, 4880), (4240, 4636)]