20992416

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:726

約数の個数: 96

約数和(自身を含む): 61508160

約数和(自身を除く): 40515744

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 19, 24, 32, 34, 38, 48, 51, 57, 68, 76, 96, 102, 114, 136, 152, 204, 228, 272, 304, 323, 408, 456, 544, 608, 646, 677, 816, 912, 969, 1292, 1354, 1632, 1824, 1938, 2031, 2584, 2708, 3876, 4062, 5168, 5416, 7752, 8124, 10336, 10832, 11509, 12863, 15504, 16248, 21664, 23018, 25726, 31008, 32496, 34527, 38589, 46036, 51452, 64992, 69054, 77178, 92072, 102904, 138108, 154356, 184144, 205808, 218671, 276216, 308712, 368288, 411616, 437342, 552432, 617424, 656013, 874684, 1104864, 1234848, 1312026, 1749368, 2624052, 3498736, 5248104, 6997472, 10496208, 20992416]

約数ペア:

[(1, 20992416), (2, 10496208), (3, 6997472), (4, 5248104), (6, 3498736), (8, 2624052), (12, 1749368), (16, 1312026), (17, 1234848), (19, 1104864), (24, 874684), (32, 656013), (34, 617424), (38, 552432), (48, 437342), (51, 411616), (57, 368288), (68, 308712), (76, 276216), (96, 218671), (102, 205808), (114, 184144), (136, 154356), (152, 138108), (204, 102904), (228, 92072), (272, 77178), (304, 69054), (323, 64992), (408, 51452), (456, 46036), (544, 38589), (608, 34527), (646, 32496), (677, 31008), (816, 25726), (912, 23018), (969, 21664), (1292, 16248), (1354, 15504), (1632, 12863), (1824, 11509), (1938, 10832), (2031, 10336), (2584, 8124), (2708, 7752), (3876, 5416), (4062, 5168)]