128538256

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1033}}^1$

素因数の和:1160

約数の個数: 80

約数和(自身を含む): 313872768

約数和(自身を除く): 185334512

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 101, 112, 154, 176, 202, 308, 404, 616, 707, 808, 1033, 1111, 1232, 1414, 1616, 2066, 2222, 2828, 4132, 4444, 5656, 7231, 7777, 8264, 8888, 11312, 11363, 14462, 15554, 16528, 17776, 22726, 28924, 31108, 45452, 57848, 62216, 79541, 90904, 104333, 115696, 124432, 159082, 181808, 208666, 318164, 417332, 636328, 730331, 834664, 1147663, 1272656, 1460662, 1669328, 2295326, 2921324, 4590652, 5842648, 8033641, 9181304, 11685296, 16067282, 18362608, 32134564, 64269128, 128538256]

約数ペア:

[(1, 128538256), (2, 64269128), (4, 32134564), (7, 18362608), (8, 16067282), (11, 11685296), (14, 9181304), (16, 8033641), (22, 5842648), (28, 4590652), (44, 2921324), (56, 2295326), (77, 1669328), (88, 1460662), (101, 1272656), (112, 1147663), (154, 834664), (176, 730331), (202, 636328), (308, 417332), (404, 318164), (616, 208666), (707, 181808), (808, 159082), (1033, 124432), (1111, 115696), (1232, 104333), (1414, 90904), (1616, 79541), (2066, 62216), (2222, 57848), (2828, 45452), (4132, 31108), (4444, 28924), (5656, 22726), (7231, 17776), (7777, 16528), (8264, 15554), (8888, 14462), (11312, 11363)]