156435760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:806

約数の個数: 80

約数和(自身を含む): 393724800

約数和(自身を除く): 237289040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 349, 431, 520, 698, 862, 1040, 1396, 1724, 1745, 2155, 2792, 3448, 3490, 4310, 4537, 5584, 5603, 6896, 6980, 8620, 9074, 11206, 13960, 17240, 18148, 22412, 22685, 27920, 28015, 34480, 36296, 44824, 45370, 56030, 72592, 89648, 90740, 112060, 150419, 181480, 224120, 300838, 362960, 448240, 601676, 752095, 1203352, 1504190, 1955447, 2406704, 3008380, 3910894, 6016760, 7821788, 9777235, 12033520, 15643576, 19554470, 31287152, 39108940, 78217880, 156435760]

約数ペア:

[(1, 156435760), (2, 78217880), (4, 39108940), (5, 31287152), (8, 19554470), (10, 15643576), (13, 12033520), (16, 9777235), (20, 7821788), (26, 6016760), (40, 3910894), (52, 3008380), (65, 2406704), (80, 1955447), (104, 1504190), (130, 1203352), (208, 752095), (260, 601676), (349, 448240), (431, 362960), (520, 300838), (698, 224120), (862, 181480), (1040, 150419), (1396, 112060), (1724, 90740), (1745, 89648), (2155, 72592), (2792, 56030), (3448, 45370), (3490, 44824), (4310, 36296), (4537, 34480), (5584, 28015), (5603, 27920), (6896, 22685), (6980, 22412), (8620, 18148), (9074, 17240), (11206, 13960)]