31387916

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 71995392

約数和(自身を除く): 40607476

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 47, 61, 68, 92, 94, 119, 122, 161, 188, 238, 244, 322, 329, 391, 427, 476, 644, 658, 782, 799, 854, 1037, 1081, 1316, 1403, 1564, 1598, 1708, 2074, 2162, 2737, 2806, 2867, 3196, 4148, 4324, 5474, 5593, 5612, 5734, 7259, 7567, 9821, 10948, 11186, 11468, 14518, 15134, 18377, 19642, 20069, 22372, 23851, 29036, 30268, 36754, 39284, 40138, 47702, 48739, 65941, 73508, 80276, 95404, 97478, 128639, 131882, 166957, 194956, 257278, 263764, 333914, 341173, 461587, 514556, 667828, 682346, 923174, 1120997, 1364692, 1846348, 2241994, 4483988, 7846979, 15693958, 31387916]

約数ペア:

[(1, 31387916), (2, 15693958), (4, 7846979), (7, 4483988), (14, 2241994), (17, 1846348), (23, 1364692), (28, 1120997), (34, 923174), (46, 682346), (47, 667828), (61, 514556), (68, 461587), (92, 341173), (94, 333914), (119, 263764), (122, 257278), (161, 194956), (188, 166957), (238, 131882), (244, 128639), (322, 97478), (329, 95404), (391, 80276), (427, 73508), (476, 65941), (644, 48739), (658, 47702), (782, 40138), (799, 39284), (854, 36754), (1037, 30268), (1081, 29036), (1316, 23851), (1403, 22372), (1564, 20069), (1598, 19642), (1708, 18377), (2074, 15134), (2162, 14518), (2737, 11468), (2806, 11186), (2867, 10948), (3196, 9821), (4148, 7567), (4324, 7259), (5474, 5734), (5593, 5612)]