78899408

素因数分解:

$2^4\times 7^2\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:820

約数の個数: 60

約数和(自身を含む): 179237412

約数和(自身を除く): 100338004

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 157, 196, 314, 392, 628, 641, 784, 1099, 1256, 1282, 2198, 2512, 2564, 4396, 4487, 5128, 7693, 8792, 8974, 10256, 15386, 17584, 17948, 30772, 31409, 35896, 61544, 62818, 71792, 100637, 123088, 125636, 201274, 251272, 402548, 502544, 704459, 805096, 1408918, 1610192, 2817836, 4931213, 5635672, 9862426, 11271344, 19724852, 39449704, 78899408]

約数ペア:

[(1, 78899408), (2, 39449704), (4, 19724852), (7, 11271344), (8, 9862426), (14, 5635672), (16, 4931213), (28, 2817836), (49, 1610192), (56, 1408918), (98, 805096), (112, 704459), (157, 502544), (196, 402548), (314, 251272), (392, 201274), (628, 125636), (641, 123088), (784, 100637), (1099, 71792), (1256, 62818), (1282, 61544), (2198, 35896), (2512, 31409), (2564, 30772), (4396, 17948), (4487, 17584), (5128, 15386), (7693, 10256), (8792, 8974)]