12521000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 30888000

約数和(自身を除く): 18367000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 659, 760, 950, 1000, 1318, 1900, 2375, 2636, 3295, 3800, 4750, 5272, 6590, 9500, 12521, 13180, 16475, 19000, 25042, 26360, 32950, 50084, 62605, 65900, 82375, 100168, 125210, 131800, 164750, 250420, 313025, 329500, 500840, 626050, 659000, 1252100, 1565125, 2504200, 3130250, 6260500, 12521000]

約数ペア:

[(1, 12521000), (2, 6260500), (4, 3130250), (5, 2504200), (8, 1565125), (10, 1252100), (19, 659000), (20, 626050), (25, 500840), (38, 329500), (40, 313025), (50, 250420), (76, 164750), (95, 131800), (100, 125210), (125, 100168), (152, 82375), (190, 65900), (200, 62605), (250, 50084), (380, 32950), (475, 26360), (500, 25042), (659, 19000), (760, 16475), (950, 13180), (1000, 12521), (1318, 9500), (1900, 6590), (2375, 5272), (2636, 4750), (3295, 3800)]