19979624

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 46863360

約数和(自身を除く): 26883736

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 119, 124, 136, 217, 238, 248, 434, 476, 527, 677, 868, 952, 1054, 1354, 1736, 2108, 2708, 3689, 4216, 4739, 5416, 7378, 9478, 11509, 14756, 18956, 20987, 23018, 29512, 37912, 41974, 46036, 80563, 83948, 92072, 146909, 161126, 167896, 293818, 322252, 356779, 587636, 644504, 713558, 1175272, 1427116, 2497453, 2854232, 4994906, 9989812, 19979624]

約数ペア:

[(1, 19979624), (2, 9989812), (4, 4994906), (7, 2854232), (8, 2497453), (14, 1427116), (17, 1175272), (28, 713558), (31, 644504), (34, 587636), (56, 356779), (62, 322252), (68, 293818), (119, 167896), (124, 161126), (136, 146909), (217, 92072), (238, 83948), (248, 80563), (434, 46036), (476, 41974), (527, 37912), (677, 29512), (868, 23018), (952, 20987), (1054, 18956), (1354, 14756), (1736, 11509), (2108, 9478), (2708, 7378), (3689, 5416), (4216, 4739)]