19430450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 19942030

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 167, 179, 325, 334, 358, 650, 835, 895, 1670, 1790, 2171, 2327, 4175, 4342, 4475, 4654, 8350, 8950, 10855, 11635, 21710, 23270, 29893, 54275, 58175, 59786, 108550, 116350, 149465, 298930, 388609, 747325, 777218, 1494650, 1943045, 3886090, 9715225, 19430450]

約数ペア:

[(1, 19430450), (2, 9715225), (5, 3886090), (10, 1943045), (13, 1494650), (25, 777218), (26, 747325), (50, 388609), (65, 298930), (130, 149465), (167, 116350), (179, 108550), (325, 59786), (334, 58175), (358, 54275), (650, 29893), (835, 23270), (895, 21710), (1670, 11635), (1790, 10855), (2171, 8950), (2327, 8350), (4175, 4654), (4342, 4475)]