81765460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 208373760

約数和(自身を除く): 126608300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 67, 70, 92, 115, 134, 140, 161, 230, 268, 322, 335, 379, 460, 469, 644, 670, 758, 805, 938, 1340, 1516, 1541, 1610, 1876, 1895, 2345, 2653, 3082, 3220, 3790, 4690, 5306, 6164, 7580, 7705, 8717, 9380, 10612, 10787, 13265, 15410, 17434, 21574, 25393, 26530, 30820, 34868, 43148, 43585, 50786, 53060, 53935, 61019, 87170, 101572, 107870, 122038, 126965, 174340, 177751, 215740, 244076, 253930, 305095, 355502, 507860, 584039, 610190, 711004, 888755, 1168078, 1220380, 1777510, 2336156, 2920195, 3555020, 4088273, 5840390, 8176546, 11680780, 16353092, 20441365, 40882730, 81765460]

約数ペア:

[(1, 81765460), (2, 40882730), (4, 20441365), (5, 16353092), (7, 11680780), (10, 8176546), (14, 5840390), (20, 4088273), (23, 3555020), (28, 2920195), (35, 2336156), (46, 1777510), (67, 1220380), (70, 1168078), (92, 888755), (115, 711004), (134, 610190), (140, 584039), (161, 507860), (230, 355502), (268, 305095), (322, 253930), (335, 244076), (379, 215740), (460, 177751), (469, 174340), (644, 126965), (670, 122038), (758, 107870), (805, 101572), (938, 87170), (1340, 61019), (1516, 53935), (1541, 53060), (1610, 50786), (1876, 43585), (1895, 43148), (2345, 34868), (2653, 30820), (3082, 26530), (3220, 25393), (3790, 21574), (4690, 17434), (5306, 15410), (6164, 13265), (7580, 10787), (7705, 10612), (8717, 9380)]