20781630

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4051}}^1$

素因数の和:4086

約数の個数: 64

約数和(自身を含む): 58348800

約数和(自身を除く): 37567170

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, 4051, 5130, 8102, 12153, 20255, 24306, 36459, 40510, 60765, 72918, 76969, 109377, 121530, 153938, 182295, 218754, 230907, 364590, 384845, 461814, 546885, 692721, 769690, 1093770, 1154535, 1385442, 2078163, 2309070, 3463605, 4156326, 6927210, 10390815, 20781630]

約数ペア:

[(1, 20781630), (2, 10390815), (3, 6927210), (5, 4156326), (6, 3463605), (9, 2309070), (10, 2078163), (15, 1385442), (18, 1154535), (19, 1093770), (27, 769690), (30, 692721), (38, 546885), (45, 461814), (54, 384845), (57, 364590), (90, 230907), (95, 218754), (114, 182295), (135, 153938), (171, 121530), (190, 109377), (270, 76969), (285, 72918), (342, 60765), (513, 40510), (570, 36459), (855, 24306), (1026, 20255), (1710, 12153), (2565, 8102), (4051, 5130)]