257410860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32257}}^1$

素因数の和:32295

約数の個数: 96

約数和(自身を含む): 867095040

約数和(自身を除く): 609684180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 32257, 64514, 96771, 129028, 161285, 193542, 225799, 322570, 387084, 451598, 483855, 612883, 645140, 677397, 903196, 967710, 1128995, 1225766, 1354794, 1838649, 1935420, 2257990, 2451532, 2709588, 3064415, 3386985, 3677298, 4290181, 4515980, 6128830, 6773970, 7354596, 8580362, 9193245, 12257660, 12870543, 13547940, 17160724, 18386490, 21450905, 25741086, 36772980, 42901810, 51482172, 64352715, 85803620, 128705430, 257410860]

約数ペア:

[(1, 257410860), (2, 128705430), (3, 85803620), (4, 64352715), (5, 51482172), (6, 42901810), (7, 36772980), (10, 25741086), (12, 21450905), (14, 18386490), (15, 17160724), (19, 13547940), (20, 12870543), (21, 12257660), (28, 9193245), (30, 8580362), (35, 7354596), (38, 6773970), (42, 6128830), (57, 4515980), (60, 4290181), (70, 3677298), (76, 3386985), (84, 3064415), (95, 2709588), (105, 2451532), (114, 2257990), (133, 1935420), (140, 1838649), (190, 1354794), (210, 1225766), (228, 1128995), (266, 967710), (285, 903196), (380, 677397), (399, 645140), (420, 612883), (532, 483855), (570, 451598), (665, 387084), (798, 322570), (1140, 225799), (1330, 193542), (1596, 161285), (1995, 129028), (2660, 96771), (3990, 64514), (7980, 32257)]