19611990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3823}}^1$

素因数の和:3858

約数の個数: 64

約数和(自身を含む): 55065600

約数和(自身を除く): 35453610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 3823, 5130, 7646, 11469, 19115, 22938, 34407, 38230, 57345, 68814, 72637, 103221, 114690, 145274, 172035, 206442, 217911, 344070, 363185, 435822, 516105, 653733, 726370, 1032210, 1089555, 1307466, 1961199, 2179110, 3268665, 3922398, 6537330, 9805995, 19611990]

約数ペア:

[(1, 19611990), (2, 9805995), (3, 6537330), (5, 3922398), (6, 3268665), (9, 2179110), (10, 1961199), (15, 1307466), (18, 1089555), (19, 1032210), (27, 726370), (30, 653733), (38, 516105), (45, 435822), (54, 363185), (57, 344070), (90, 217911), (95, 206442), (114, 172035), (135, 145274), (171, 114690), (190, 103221), (270, 72637), (285, 68814), (342, 57345), (513, 38230), (570, 34407), (855, 22938), (1026, 19115), (1710, 11469), (2565, 7646), (3823, 5130)]