20715120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28771}}^1$

素因数の和:28790

約数の個数: 60

約数和(自身を含む): 69570696

約数和(自身を除く): 48855576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28771, 57542, 86313, 115084, 143855, 172626, 230168, 258939, 287710, 345252, 431565, 460336, 517878, 575420, 690504, 863130, 1035756, 1150840, 1294695, 1381008, 1726260, 2071512, 2301680, 2589390, 3452520, 4143024, 5178780, 6905040, 10357560, 20715120]

約数ペア:

[(1, 20715120), (2, 10357560), (3, 6905040), (4, 5178780), (5, 4143024), (6, 3452520), (8, 2589390), (9, 2301680), (10, 2071512), (12, 1726260), (15, 1381008), (16, 1294695), (18, 1150840), (20, 1035756), (24, 863130), (30, 690504), (36, 575420), (40, 517878), (45, 460336), (48, 431565), (60, 345252), (72, 287710), (80, 258939), (90, 230168), (120, 172626), (144, 143855), (180, 115084), (240, 86313), (360, 57542), (720, 28771)]