19407550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 39283200

約数和(自身を除く): 19875650

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 475, 589, 659, 775, 950, 1178, 1318, 1550, 2945, 3295, 5890, 6590, 12521, 14725, 16475, 20429, 25042, 29450, 32950, 40858, 62605, 102145, 125210, 204290, 313025, 388151, 510725, 626050, 776302, 1021450, 1940755, 3881510, 9703775, 19407550]

約数ペア:

[(1, 19407550), (2, 9703775), (5, 3881510), (10, 1940755), (19, 1021450), (25, 776302), (31, 626050), (38, 510725), (50, 388151), (62, 313025), (95, 204290), (155, 125210), (190, 102145), (310, 62605), (475, 40858), (589, 32950), (659, 29450), (775, 25042), (950, 20429), (1178, 16475), (1318, 14725), (1550, 12521), (2945, 6590), (3295, 5890)]