81457636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2843}}^1$

素因数の和:2908

約数の個数: 48

約数和(自身を含む): 167227200

約数和(自身を除く): 85769564

約数列:

[1, 2, 4, 13, 19, 26, 29, 38, 52, 58, 76, 116, 247, 377, 494, 551, 754, 988, 1102, 1508, 2204, 2843, 5686, 7163, 11372, 14326, 28652, 36959, 54017, 73918, 82447, 108034, 147836, 164894, 216068, 329788, 702221, 1071811, 1404442, 1566493, 2143622, 2808884, 3132986, 4287244, 6265972, 20364409, 40728818, 81457636]

約数ペア:

[(1, 81457636), (2, 40728818), (4, 20364409), (13, 6265972), (19, 4287244), (26, 3132986), (29, 2808884), (38, 2143622), (52, 1566493), (58, 1404442), (76, 1071811), (116, 702221), (247, 329788), (377, 216068), (494, 164894), (551, 147836), (754, 108034), (988, 82447), (1102, 73918), (1508, 54017), (2204, 36959), (2843, 28652), (5686, 14326), (7163, 11372)]