31800720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:869

約数の個数: 160

約数和(自身を含む): 117706752

約数和(自身を除く): 85906032

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 644, 690, 805, 823, 840, 920, 966, 1104, 1288, 1380, 1610, 1646, 1680, 1840, 1932, 2415, 2469, 2576, 2760, 3220, 3292, 3864, 4115, 4830, 4938, 5520, 5761, 6440, 6584, 7728, 8230, 9660, 9876, 11522, 12345, 12880, 13168, 16460, 17283, 18929, 19320, 19752, 23044, 24690, 28805, 32920, 34566, 37858, 38640, 39504, 46088, 49380, 56787, 57610, 65840, 69132, 75716, 86415, 92176, 94645, 98760, 113574, 115220, 132503, 138264, 151432, 172830, 189290, 197520, 227148, 230440, 265006, 276528, 283935, 302864, 345660, 378580, 397509, 454296, 460880, 530012, 567870, 662515, 691320, 757160, 795018, 908592, 1060024, 1135740, 1325030, 1382640, 1514320, 1590036, 1987545, 2120048, 2271480, 2650060, 3180072, 3975090, 4542960, 5300120, 6360144, 7950180, 10600240, 15900360, 31800720]

約数ペア:

[(1, 31800720), (2, 15900360), (3, 10600240), (4, 7950180), (5, 6360144), (6, 5300120), (7, 4542960), (8, 3975090), (10, 3180072), (12, 2650060), (14, 2271480), (15, 2120048), (16, 1987545), (20, 1590036), (21, 1514320), (23, 1382640), (24, 1325030), (28, 1135740), (30, 1060024), (35, 908592), (40, 795018), (42, 757160), (46, 691320), (48, 662515), (56, 567870), (60, 530012), (69, 460880), (70, 454296), (80, 397509), (84, 378580), (92, 345660), (105, 302864), (112, 283935), (115, 276528), (120, 265006), (138, 230440), (140, 227148), (161, 197520), (168, 189290), (184, 172830), (210, 151432), (230, 138264), (240, 132503), (276, 115220), (280, 113574), (322, 98760), (336, 94645), (345, 92176), (368, 86415), (420, 75716), (460, 69132), (483, 65840), (552, 57610), (560, 56787), (644, 49380), (690, 46088), (805, 39504), (823, 38640), (840, 37858), (920, 34566), (966, 32920), (1104, 28805), (1288, 24690), (1380, 23044), (1610, 19752), (1646, 19320), (1680, 18929), (1840, 17283), (1932, 16460), (2415, 13168), (2469, 12880), (2576, 12345), (2760, 11522), (3220, 9876), (3292, 9660), (3864, 8230), (4115, 7728), (4830, 6584), (4938, 6440), (5520, 5761)]