78208900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1451}}^1$

素因数の和:1490

約数の個数: 108

約数和(自身を含む): 215517456

約数和(自身を除く): 137308556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 49, 50, 55, 70, 77, 98, 100, 110, 140, 154, 175, 196, 220, 245, 275, 308, 350, 385, 490, 539, 550, 700, 770, 980, 1078, 1100, 1225, 1451, 1540, 1925, 2156, 2450, 2695, 2902, 3850, 4900, 5390, 5804, 7255, 7700, 10157, 10780, 13475, 14510, 15961, 20314, 26950, 29020, 31922, 36275, 40628, 50785, 53900, 63844, 71099, 72550, 79805, 101570, 111727, 142198, 145100, 159610, 203140, 223454, 253925, 284396, 319220, 355495, 399025, 446908, 507850, 558635, 710990, 782089, 798050, 1015700, 1117270, 1421980, 1564178, 1596100, 1777475, 2234540, 2793175, 3128356, 3554950, 3910445, 5586350, 7109900, 7820890, 11172700, 15641780, 19552225, 39104450, 78208900]

約数ペア:

[(1, 78208900), (2, 39104450), (4, 19552225), (5, 15641780), (7, 11172700), (10, 7820890), (11, 7109900), (14, 5586350), (20, 3910445), (22, 3554950), (25, 3128356), (28, 2793175), (35, 2234540), (44, 1777475), (49, 1596100), (50, 1564178), (55, 1421980), (70, 1117270), (77, 1015700), (98, 798050), (100, 782089), (110, 710990), (140, 558635), (154, 507850), (175, 446908), (196, 399025), (220, 355495), (245, 319220), (275, 284396), (308, 253925), (350, 223454), (385, 203140), (490, 159610), (539, 145100), (550, 142198), (700, 111727), (770, 101570), (980, 79805), (1078, 72550), (1100, 71099), (1225, 63844), (1451, 53900), (1540, 50785), (1925, 40628), (2156, 36275), (2450, 31922), (2695, 29020), (2902, 26950), (3850, 20314), (4900, 15961), (5390, 14510), (5804, 13475), (7255, 10780), (7700, 10157)]