19917472

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 25805408

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 41, 47, 68, 76, 82, 94, 136, 152, 164, 188, 272, 304, 323, 328, 376, 544, 608, 646, 656, 697, 752, 779, 799, 893, 1292, 1312, 1394, 1504, 1558, 1598, 1786, 1927, 2584, 2788, 3116, 3196, 3572, 3854, 5168, 5576, 6232, 6392, 7144, 7708, 10336, 11152, 12464, 12784, 13243, 14288, 15181, 15416, 22304, 24928, 25568, 26486, 28576, 30362, 30832, 32759, 36613, 52972, 60724, 61664, 65518, 73226, 105944, 121448, 131036, 146452, 211888, 242896, 262072, 292904, 423776, 485792, 524144, 585808, 622421, 1048288, 1171616, 1244842, 2489684, 4979368, 9958736, 19917472]

約数ペア:

[(1, 19917472), (2, 9958736), (4, 4979368), (8, 2489684), (16, 1244842), (17, 1171616), (19, 1048288), (32, 622421), (34, 585808), (38, 524144), (41, 485792), (47, 423776), (68, 292904), (76, 262072), (82, 242896), (94, 211888), (136, 146452), (152, 131036), (164, 121448), (188, 105944), (272, 73226), (304, 65518), (323, 61664), (328, 60724), (376, 52972), (544, 36613), (608, 32759), (646, 30832), (656, 30362), (697, 28576), (752, 26486), (779, 25568), (799, 24928), (893, 22304), (1292, 15416), (1312, 15181), (1394, 14288), (1504, 13243), (1558, 12784), (1598, 12464), (1786, 11152), (1927, 10336), (2584, 7708), (2788, 7144), (3116, 6392), (3196, 6232), (3572, 5576), (3854, 5168)]