56431840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20747}}^1$

素因数の和:20779

約数の個数: 48

約数和(自身を含む): 141169392

約数和(自身を除く): 84737552

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 20747, 41494, 82988, 103735, 165976, 207470, 331952, 352699, 414940, 663904, 705398, 829880, 1410796, 1659760, 1763495, 2821592, 3319520, 3526990, 5643184, 7053980, 11286368, 14107960, 28215920, 56431840]

約数ペア:

[(1, 56431840), (2, 28215920), (4, 14107960), (5, 11286368), (8, 7053980), (10, 5643184), (16, 3526990), (17, 3319520), (20, 2821592), (32, 1763495), (34, 1659760), (40, 1410796), (68, 829880), (80, 705398), (85, 663904), (136, 414940), (160, 352699), (170, 331952), (272, 207470), (340, 165976), (544, 103735), (680, 82988), (1360, 41494), (2720, 20747)]