77720860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1117}}^1$

素因数の和:1211

約数の個数: 72

約数和(自身を含む): 192707424

約数和(自身を除く): 114986564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1117, 1420, 1988, 2234, 2485, 3479, 4468, 4970, 5585, 6958, 7819, 9940, 11170, 13916, 15638, 17395, 22340, 31276, 34790, 39095, 54733, 69580, 78190, 79307, 109466, 156380, 158614, 218932, 273665, 317228, 396535, 547330, 555149, 793070, 1094660, 1110298, 1586140, 2220596, 2775745, 3886043, 5551490, 7772086, 11102980, 15544172, 19430215, 38860430, 77720860]

約数ペア:

[(1, 77720860), (2, 38860430), (4, 19430215), (5, 15544172), (7, 11102980), (10, 7772086), (14, 5551490), (20, 3886043), (28, 2775745), (35, 2220596), (49, 1586140), (70, 1110298), (71, 1094660), (98, 793070), (140, 555149), (142, 547330), (196, 396535), (245, 317228), (284, 273665), (355, 218932), (490, 158614), (497, 156380), (710, 109466), (980, 79307), (994, 78190), (1117, 69580), (1420, 54733), (1988, 39095), (2234, 34790), (2485, 31276), (3479, 22340), (4468, 17395), (4970, 15638), (5585, 13916), (6958, 11170), (7819, 9940)]