81919768

素因数分解:

$2^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3943}}^1$

素因数の和:4016

約数の個数: 48

約数和(自身を含む): 182094480

約数和(自身を除く): 100174712

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 53, 56, 98, 106, 196, 212, 371, 392, 424, 742, 1484, 2597, 2968, 3943, 5194, 7886, 10388, 15772, 20776, 27601, 31544, 55202, 110404, 193207, 208979, 220808, 386414, 417958, 772828, 835916, 1462853, 1545656, 1671832, 2925706, 5851412, 10239971, 11702824, 20479942, 40959884, 81919768]

約数ペア:

[(1, 81919768), (2, 40959884), (4, 20479942), (7, 11702824), (8, 10239971), (14, 5851412), (28, 2925706), (49, 1671832), (53, 1545656), (56, 1462853), (98, 835916), (106, 772828), (196, 417958), (212, 386414), (371, 220808), (392, 208979), (424, 193207), (742, 110404), (1484, 55202), (2597, 31544), (2968, 27601), (3943, 20776), (5194, 15772), (7886, 10388)]