28715960

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:75

約数の個数: 160

約数和(自身を含む): 84702240

約数和(自身を除く): 55986280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 23, 26, 28, 35, 40, 46, 49, 52, 56, 65, 70, 91, 92, 98, 104, 115, 130, 140, 161, 182, 184, 196, 230, 245, 260, 280, 299, 322, 343, 364, 392, 455, 460, 490, 520, 598, 637, 644, 686, 728, 805, 910, 920, 980, 1127, 1196, 1274, 1288, 1372, 1495, 1610, 1715, 1820, 1960, 2093, 2254, 2392, 2401, 2548, 2744, 2990, 3185, 3220, 3430, 3640, 4186, 4459, 4508, 4802, 5096, 5635, 5980, 6370, 6440, 6860, 7889, 8372, 8918, 9016, 9604, 10465, 11270, 11960, 12005, 12740, 13720, 14651, 15778, 16744, 17836, 19208, 20930, 22295, 22540, 24010, 25480, 29302, 31213, 31556, 35672, 39445, 41860, 44590, 45080, 48020, 55223, 58604, 62426, 63112, 73255, 78890, 83720, 89180, 96040, 102557, 110446, 117208, 124852, 146510, 156065, 157780, 178360, 205114, 220892, 249704, 276115, 293020, 312130, 315560, 410228, 441784, 512785, 552230, 586040, 624260, 717899, 820456, 1025570, 1104460, 1248520, 1435798, 2051140, 2208920, 2871596, 3589495, 4102280, 5743192, 7178990, 14357980, 28715960]

約数ペア:

[(1, 28715960), (2, 14357980), (4, 7178990), (5, 5743192), (7, 4102280), (8, 3589495), (10, 2871596), (13, 2208920), (14, 2051140), (20, 1435798), (23, 1248520), (26, 1104460), (28, 1025570), (35, 820456), (40, 717899), (46, 624260), (49, 586040), (52, 552230), (56, 512785), (65, 441784), (70, 410228), (91, 315560), (92, 312130), (98, 293020), (104, 276115), (115, 249704), (130, 220892), (140, 205114), (161, 178360), (182, 157780), (184, 156065), (196, 146510), (230, 124852), (245, 117208), (260, 110446), (280, 102557), (299, 96040), (322, 89180), (343, 83720), (364, 78890), (392, 73255), (455, 63112), (460, 62426), (490, 58604), (520, 55223), (598, 48020), (637, 45080), (644, 44590), (686, 41860), (728, 39445), (805, 35672), (910, 31556), (920, 31213), (980, 29302), (1127, 25480), (1196, 24010), (1274, 22540), (1288, 22295), (1372, 20930), (1495, 19208), (1610, 17836), (1715, 16744), (1820, 15778), (1960, 14651), (2093, 13720), (2254, 12740), (2392, 12005), (2401, 11960), (2548, 11270), (2744, 10465), (2990, 9604), (3185, 9016), (3220, 8918), (3430, 8372), (3640, 7889), (4186, 6860), (4459, 6440), (4508, 6370), (4802, 5980), (5096, 5635)]