18297920

素因数分解:

$2^6\times 5^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:499

約数の個数: 56

約数和(自身を含む): 43939968

約数和(自身を除く): 25642048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 211, 271, 320, 422, 542, 844, 1055, 1084, 1355, 1688, 2110, 2168, 2710, 3376, 4220, 4336, 5420, 6752, 8440, 8672, 10840, 13504, 16880, 17344, 21680, 33760, 43360, 57181, 67520, 86720, 114362, 228724, 285905, 457448, 571810, 914896, 1143620, 1829792, 2287240, 3659584, 4574480, 9148960, 18297920]

約数ペア:

[(1, 18297920), (2, 9148960), (4, 4574480), (5, 3659584), (8, 2287240), (10, 1829792), (16, 1143620), (20, 914896), (32, 571810), (40, 457448), (64, 285905), (80, 228724), (160, 114362), (211, 86720), (271, 67520), (320, 57181), (422, 43360), (542, 33760), (844, 21680), (1055, 17344), (1084, 16880), (1355, 13504), (1688, 10840), (2110, 8672), (2168, 8440), (2710, 6752), (3376, 5420), (4220, 4336)]