20965740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42175380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 53, 57, 60, 76, 95, 106, 114, 159, 190, 212, 228, 265, 285, 318, 347, 380, 530, 570, 636, 694, 795, 1007, 1041, 1060, 1140, 1388, 1590, 1735, 2014, 2082, 3021, 3180, 3470, 4028, 4164, 5035, 5205, 6042, 6593, 6940, 10070, 10410, 12084, 13186, 15105, 18391, 19779, 20140, 20820, 26372, 30210, 32965, 36782, 39558, 55173, 60420, 65930, 73564, 79116, 91955, 98895, 110346, 131860, 183910, 197790, 220692, 275865, 349429, 367820, 395580, 551730, 698858, 1048287, 1103460, 1397716, 1747145, 2096574, 3494290, 4193148, 5241435, 6988580, 10482870, 20965740]

約数ペア:

[(1, 20965740), (2, 10482870), (3, 6988580), (4, 5241435), (5, 4193148), (6, 3494290), (10, 2096574), (12, 1747145), (15, 1397716), (19, 1103460), (20, 1048287), (30, 698858), (38, 551730), (53, 395580), (57, 367820), (60, 349429), (76, 275865), (95, 220692), (106, 197790), (114, 183910), (159, 131860), (190, 110346), (212, 98895), (228, 91955), (265, 79116), (285, 73564), (318, 65930), (347, 60420), (380, 55173), (530, 39558), (570, 36782), (636, 32965), (694, 30210), (795, 26372), (1007, 20820), (1041, 20140), (1060, 19779), (1140, 18391), (1388, 15105), (1590, 13186), (1735, 12084), (2014, 10410), (2082, 10070), (3021, 6940), (3180, 6593), (3470, 6042), (4028, 5205), (4164, 5035)]