18921170025

素因数分解:

$3^3\times 5^2\times {\mathrm{173}}^1\times {\mathrm{311}}^1\times {\mathrm{521}}^1$

素因数の和:1024

約数の個数: 96

約数和(自身を含む): 35139536640

約数和(自身を除く): 16218366615

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 173, 225, 311, 519, 521, 675, 865, 933, 1555, 1557, 1563, 2595, 2605, 2799, 4325, 4665, 4671, 4689, 7775, 7785, 7815, 8397, 12975, 13025, 13995, 14067, 23325, 23355, 23445, 38925, 39075, 41985, 53803, 69975, 70335, 90133, 116775, 117225, 161409, 162031, 209925, 269015, 270399, 351675, 450665, 484227, 486093, 807045, 810155, 811197, 1345075, 1351995, 1452681, 1458279, 2253325, 2421135, 2430465, 2433591, 4035225, 4050775, 4055985, 4374837, 6759975, 7263405, 7291395, 12105675, 12152325, 12167955, 20279925, 21874185, 28031363, 36317025, 36456975, 60839775, 84094089, 109370925, 140156815, 252282267, 420470445, 700784075, 756846801, 1261411335, 2102352225, 3784234005, 6307056675, 18921170025]

約数ペア:

[(1, 18921170025), (3, 6307056675), (5, 3784234005), (9, 2102352225), (15, 1261411335), (25, 756846801), (27, 700784075), (45, 420470445), (75, 252282267), (135, 140156815), (173, 109370925), (225, 84094089), (311, 60839775), (519, 36456975), (521, 36317025), (675, 28031363), (865, 21874185), (933, 20279925), (1555, 12167955), (1557, 12152325), (1563, 12105675), (2595, 7291395), (2605, 7263405), (2799, 6759975), (4325, 4374837), (4665, 4055985), (4671, 4050775), (4689, 4035225), (7775, 2433591), (7785, 2430465), (7815, 2421135), (8397, 2253325), (12975, 1458279), (13025, 1452681), (13995, 1351995), (14067, 1345075), (23325, 811197), (23355, 810155), (23445, 807045), (38925, 486093), (39075, 484227), (41985, 450665), (53803, 351675), (69975, 270399), (70335, 269015), (90133, 209925), (116775, 162031), (117225, 161409)]