20735880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{683}}^1$

素因数の和:731

約数の個数: 128

約数和(自身を含む): 70917120

約数和(自身を除く): 50181240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 660, 683, 690, 759, 920, 1012, 1265, 1320, 1366, 1380, 1518, 2024, 2049, 2530, 2732, 2760, 3036, 3415, 3795, 4098, 5060, 5464, 6072, 6830, 7513, 7590, 8196, 10120, 10245, 13660, 15026, 15180, 15709, 16392, 20490, 22539, 27320, 30052, 30360, 31418, 37565, 40980, 45078, 47127, 60104, 62836, 75130, 78545, 81960, 90156, 94254, 112695, 125672, 150260, 157090, 172799, 180312, 188508, 225390, 235635, 300520, 314180, 345598, 377016, 450780, 471270, 518397, 628360, 691196, 863995, 901560, 942540, 1036794, 1382392, 1727990, 1885080, 2073588, 2591985, 3455980, 4147176, 5183970, 6911960, 10367940, 20735880]

約数ペア:

[(1, 20735880), (2, 10367940), (3, 6911960), (4, 5183970), (5, 4147176), (6, 3455980), (8, 2591985), (10, 2073588), (11, 1885080), (12, 1727990), (15, 1382392), (20, 1036794), (22, 942540), (23, 901560), (24, 863995), (30, 691196), (33, 628360), (40, 518397), (44, 471270), (46, 450780), (55, 377016), (60, 345598), (66, 314180), (69, 300520), (88, 235635), (92, 225390), (110, 188508), (115, 180312), (120, 172799), (132, 157090), (138, 150260), (165, 125672), (184, 112695), (220, 94254), (230, 90156), (253, 81960), (264, 78545), (276, 75130), (330, 62836), (345, 60104), (440, 47127), (460, 45078), (506, 40980), (552, 37565), (660, 31418), (683, 30360), (690, 30052), (759, 27320), (920, 22539), (1012, 20490), (1265, 16392), (1320, 15709), (1366, 15180), (1380, 15026), (1518, 13660), (2024, 10245), (2049, 10120), (2530, 8196), (2732, 7590), (2760, 7513), (3036, 6830), (3415, 6072), (3795, 5464), (4098, 5060)]