90172880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7001}}^1$

素因数の和:7044

約数の個数: 80

約数和(自身を含む): 250055424

約数和(自身を除く): 159882544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 7001, 12880, 14002, 28004, 35005, 49007, 56008, 70010, 98014, 112016, 140020, 161023, 196028, 245035, 280040, 322046, 392056, 490070, 560080, 644092, 784112, 805115, 980140, 1127161, 1288184, 1610230, 1960280, 2254322, 2576368, 3220460, 3920560, 4508644, 5635805, 6440920, 9017288, 11271610, 12881840, 18034576, 22543220, 45086440, 90172880]

約数ペア:

[(1, 90172880), (2, 45086440), (4, 22543220), (5, 18034576), (7, 12881840), (8, 11271610), (10, 9017288), (14, 6440920), (16, 5635805), (20, 4508644), (23, 3920560), (28, 3220460), (35, 2576368), (40, 2254322), (46, 1960280), (56, 1610230), (70, 1288184), (80, 1127161), (92, 980140), (112, 805115), (115, 784112), (140, 644092), (161, 560080), (184, 490070), (230, 392056), (280, 322046), (322, 280040), (368, 245035), (460, 196028), (560, 161023), (644, 140020), (805, 112016), (920, 98014), (1288, 70010), (1610, 56008), (1840, 49007), (2576, 35005), (3220, 28004), (6440, 14002), (7001, 12880)]