7800100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1013}}^1$

素因数の和:1045

約数の個数: 72

約数和(自身を含む): 21123648

約数和(自身を除く): 13323548

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1013, 1100, 1540, 1925, 2026, 3850, 4052, 5065, 7091, 7700, 10130, 11143, 14182, 20260, 22286, 25325, 28364, 35455, 44572, 50650, 55715, 70910, 78001, 101300, 111430, 141820, 156002, 177275, 222860, 278575, 312004, 354550, 390005, 557150, 709100, 780010, 1114300, 1560020, 1950025, 3900050, 7800100]

約数ペア:

[(1, 7800100), (2, 3900050), (4, 1950025), (5, 1560020), (7, 1114300), (10, 780010), (11, 709100), (14, 557150), (20, 390005), (22, 354550), (25, 312004), (28, 278575), (35, 222860), (44, 177275), (50, 156002), (55, 141820), (70, 111430), (77, 101300), (100, 78001), (110, 70910), (140, 55715), (154, 50650), (175, 44572), (220, 35455), (275, 28364), (308, 25325), (350, 22286), (385, 20260), (550, 14182), (700, 11143), (770, 10130), (1013, 7700), (1100, 7091), (1540, 5065), (1925, 4052), (2026, 3850)]