7864481900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{376291}}^1$

素因数の和:376335

約数の個数: 72

約数和(自身を含む): 19597287360

約数和(自身を除く): 11732805460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 1045, 1100, 1900, 2090, 4180, 5225, 10450, 20900, 376291, 752582, 1505164, 1881455, 3762910, 4139201, 7149529, 7525820, 8278402, 9407275, 14299058, 16556804, 18814550, 20696005, 28598116, 35747645, 37629100, 41392010, 71495290, 78644819, 82784020, 103480025, 142990580, 157289638, 178738225, 206960050, 314579276, 357476450, 393224095, 413920100, 714952900, 786448190, 1572896380, 1966120475, 3932240950, 7864481900]

約数ペア:

[(1, 7864481900), (2, 3932240950), (4, 1966120475), (5, 1572896380), (10, 786448190), (11, 714952900), (19, 413920100), (20, 393224095), (22, 357476450), (25, 314579276), (38, 206960050), (44, 178738225), (50, 157289638), (55, 142990580), (76, 103480025), (95, 82784020), (100, 78644819), (110, 71495290), (190, 41392010), (209, 37629100), (220, 35747645), (275, 28598116), (380, 20696005), (418, 18814550), (475, 16556804), (550, 14299058), (836, 9407275), (950, 8278402), (1045, 7525820), (1100, 7149529), (1900, 4139201), (2090, 3762910), (4180, 1881455), (5225, 1505164), (10450, 752582), (20900, 376291)]