2502500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:55

約数の個数: 120

約数和(自身を含む): 7347648

約数和(自身を除く): 4845148

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 91, 100, 110, 125, 130, 140, 143, 154, 175, 182, 220, 250, 260, 275, 286, 308, 325, 350, 364, 385, 455, 500, 550, 572, 625, 650, 700, 715, 770, 875, 910, 1001, 1100, 1250, 1300, 1375, 1430, 1540, 1625, 1750, 1820, 1925, 2002, 2275, 2500, 2750, 2860, 3250, 3500, 3575, 3850, 4004, 4375, 4550, 5005, 5500, 6500, 6875, 7150, 7700, 8125, 8750, 9100, 9625, 10010, 11375, 13750, 14300, 16250, 17500, 17875, 19250, 20020, 22750, 25025, 27500, 32500, 35750, 38500, 45500, 48125, 50050, 56875, 71500, 89375, 96250, 100100, 113750, 125125, 178750, 192500, 227500, 250250, 357500, 500500, 625625, 1251250, 2502500]

約数ペア:

[(1, 2502500), (2, 1251250), (4, 625625), (5, 500500), (7, 357500), (10, 250250), (11, 227500), (13, 192500), (14, 178750), (20, 125125), (22, 113750), (25, 100100), (26, 96250), (28, 89375), (35, 71500), (44, 56875), (50, 50050), (52, 48125), (55, 45500), (65, 38500), (70, 35750), (77, 32500), (91, 27500), (100, 25025), (110, 22750), (125, 20020), (130, 19250), (140, 17875), (143, 17500), (154, 16250), (175, 14300), (182, 13750), (220, 11375), (250, 10010), (260, 9625), (275, 9100), (286, 8750), (308, 8125), (325, 7700), (350, 7150), (364, 6875), (385, 6500), (455, 5500), (500, 5005), (550, 4550), (572, 4375), (625, 4004), (650, 3850), (700, 3575), (715, 3500), (770, 3250), (875, 2860), (910, 2750), (1001, 2500), (1100, 2275), (1250, 2002), (1300, 1925), (1375, 1820), (1430, 1750), (1540, 1625)]