209442904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 443750400

約数和(自身を除く): 234307496

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 79, 88, 94, 158, 188, 316, 376, 517, 632, 641, 869, 1034, 1282, 1738, 2068, 2564, 3476, 3713, 4136, 5128, 6952, 7051, 7426, 14102, 14852, 28204, 29704, 30127, 40843, 50639, 56408, 60254, 81686, 101278, 120508, 163372, 202556, 241016, 326744, 331397, 405112, 557029, 662794, 1114058, 1325588, 2228116, 2380033, 2651176, 4456232, 4760066, 9520132, 19040264, 26180363, 52360726, 104721452, 209442904]

約数ペア:

[(1, 209442904), (2, 104721452), (4, 52360726), (8, 26180363), (11, 19040264), (22, 9520132), (44, 4760066), (47, 4456232), (79, 2651176), (88, 2380033), (94, 2228116), (158, 1325588), (188, 1114058), (316, 662794), (376, 557029), (517, 405112), (632, 331397), (641, 326744), (869, 241016), (1034, 202556), (1282, 163372), (1738, 120508), (2068, 101278), (2564, 81686), (3476, 60254), (3713, 56408), (4136, 50639), (5128, 40843), (6952, 30127), (7051, 29704), (7426, 28204), (14102, 14852)]