72820000

素因数分解:

$2^5\times 5^4\times {\mathrm{11}}^1\times {\mathrm{331}}^1$

素因数の和:372

約数の個数: 120

約数和(自身を含む): 196024752

約数和(自身を除く): 123204752

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 160, 176, 200, 220, 250, 275, 331, 352, 400, 440, 500, 550, 625, 662, 800, 880, 1000, 1100, 1250, 1324, 1375, 1655, 1760, 2000, 2200, 2500, 2648, 2750, 3310, 3641, 4000, 4400, 5000, 5296, 5500, 6620, 6875, 7282, 8275, 8800, 10000, 10592, 11000, 13240, 13750, 14564, 16550, 18205, 20000, 22000, 26480, 27500, 29128, 33100, 36410, 41375, 44000, 52960, 55000, 58256, 66200, 72820, 82750, 91025, 110000, 116512, 132400, 145640, 165500, 182050, 206875, 220000, 264800, 291280, 331000, 364100, 413750, 455125, 582560, 662000, 728200, 827500, 910250, 1324000, 1456400, 1655000, 1820500, 2275625, 2912800, 3310000, 3641000, 4551250, 6620000, 7282000, 9102500, 14564000, 18205000, 36410000, 72820000]

約数ペア:

[(1, 72820000), (2, 36410000), (4, 18205000), (5, 14564000), (8, 9102500), (10, 7282000), (11, 6620000), (16, 4551250), (20, 3641000), (22, 3310000), (25, 2912800), (32, 2275625), (40, 1820500), (44, 1655000), (50, 1456400), (55, 1324000), (80, 910250), (88, 827500), (100, 728200), (110, 662000), (125, 582560), (160, 455125), (176, 413750), (200, 364100), (220, 331000), (250, 291280), (275, 264800), (331, 220000), (352, 206875), (400, 182050), (440, 165500), (500, 145640), (550, 132400), (625, 116512), (662, 110000), (800, 91025), (880, 82750), (1000, 72820), (1100, 66200), (1250, 58256), (1324, 55000), (1375, 52960), (1655, 44000), (1760, 41375), (2000, 36410), (2200, 33100), (2500, 29128), (2648, 27500), (2750, 26480), (3310, 22000), (3641, 20000), (4000, 18205), (4400, 16550), (5000, 14564), (5296, 13750), (5500, 13240), (6620, 11000), (6875, 10592), (7282, 10000), (8275, 8800)]