51293788

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 115429104

約数和(自身を除く): 64135316

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 49, 52, 82, 91, 98, 164, 182, 196, 287, 364, 491, 533, 574, 637, 982, 1066, 1148, 1274, 1964, 2009, 2132, 2548, 3437, 3731, 4018, 6383, 6874, 7462, 8036, 12766, 13748, 14924, 20131, 24059, 25532, 26117, 40262, 44681, 48118, 52234, 80524, 89362, 96236, 104468, 140917, 178724, 261703, 281834, 312767, 523406, 563668, 625534, 986419, 1046812, 1251068, 1831921, 1972838, 3663842, 3945676, 7327684, 12823447, 25646894, 51293788]

約数ペア:

[(1, 51293788), (2, 25646894), (4, 12823447), (7, 7327684), (13, 3945676), (14, 3663842), (26, 1972838), (28, 1831921), (41, 1251068), (49, 1046812), (52, 986419), (82, 625534), (91, 563668), (98, 523406), (164, 312767), (182, 281834), (196, 261703), (287, 178724), (364, 140917), (491, 104468), (533, 96236), (574, 89362), (637, 80524), (982, 52234), (1066, 48118), (1148, 44681), (1274, 40262), (1964, 26117), (2009, 25532), (2132, 24059), (2548, 20131), (3437, 14924), (3731, 13748), (4018, 12766), (6383, 8036), (6874, 7462)]