20765438085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{823}}^1\times {\mathrm{2333}}^1$

素因数の和:3274

約数の個数: 64

約数和(自身を含む): 38402777088

約数和(自身を除く): 17637339003

約数列:

[1, 3, 5, 7, 15, 21, 35, 103, 105, 309, 515, 721, 823, 1545, 2163, 2333, 2469, 3605, 4115, 5761, 6999, 10815, 11665, 12345, 16331, 17283, 28805, 34995, 48993, 81655, 84769, 86415, 240299, 244965, 254307, 423845, 593383, 720897, 1201495, 1271535, 1682093, 1780149, 1920059, 2966915, 3604485, 5046279, 5760177, 8410465, 8900745, 9600295, 13440413, 25231395, 28800885, 40321239, 67202065, 197766077, 201606195, 593298231, 988830385, 1384362539, 2966491155, 4153087617, 6921812695, 20765438085]

約数ペア:

[(1, 20765438085), (3, 6921812695), (5, 4153087617), (7, 2966491155), (15, 1384362539), (21, 988830385), (35, 593298231), (103, 201606195), (105, 197766077), (309, 67202065), (515, 40321239), (721, 28800885), (823, 25231395), (1545, 13440413), (2163, 9600295), (2333, 8900745), (2469, 8410465), (3605, 5760177), (4115, 5046279), (5761, 3604485), (6999, 2966915), (10815, 1920059), (11665, 1780149), (12345, 1682093), (16331, 1271535), (17283, 1201495), (28805, 720897), (34995, 593383), (48993, 423845), (81655, 254307), (84769, 244965), (86415, 240299)]