258873560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{18979}}^1$

素因数の和:19032

約数の個数: 64

約数和(自身を含む): 655948800

約数和(自身を除く): 397075240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 18979, 37958, 75916, 94895, 151832, 189790, 208769, 379580, 417538, 588349, 759160, 835076, 1043845, 1176698, 1670152, 2087690, 2353396, 2941745, 4175380, 4706792, 5883490, 6471839, 8350760, 11766980, 12943678, 23533960, 25887356, 32359195, 51774712, 64718390, 129436780, 258873560]

約数ペア:

[(1, 258873560), (2, 129436780), (4, 64718390), (5, 51774712), (8, 32359195), (10, 25887356), (11, 23533960), (20, 12943678), (22, 11766980), (31, 8350760), (40, 6471839), (44, 5883490), (55, 4706792), (62, 4175380), (88, 2941745), (110, 2353396), (124, 2087690), (155, 1670152), (220, 1176698), (248, 1043845), (310, 835076), (341, 759160), (440, 588349), (620, 417538), (682, 379580), (1240, 208769), (1364, 189790), (1705, 151832), (2728, 94895), (3410, 75916), (6820, 37958), (13640, 18979)]