19791730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 24998030

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 437, 647, 665, 805, 874, 1294, 1330, 1610, 2185, 3059, 3235, 4370, 4529, 6118, 6470, 9058, 12293, 14881, 15295, 22645, 24586, 29762, 30590, 45290, 61465, 74405, 86051, 104167, 122930, 148810, 172102, 208334, 282739, 430255, 520835, 565478, 860510, 1041670, 1413695, 1979173, 2827390, 3958346, 9895865, 19791730]

約数ペア:

[(1, 19791730), (2, 9895865), (5, 3958346), (7, 2827390), (10, 1979173), (14, 1413695), (19, 1041670), (23, 860510), (35, 565478), (38, 520835), (46, 430255), (70, 282739), (95, 208334), (115, 172102), (133, 148810), (161, 122930), (190, 104167), (230, 86051), (266, 74405), (322, 61465), (437, 45290), (647, 30590), (665, 29762), (805, 24586), (874, 22645), (1294, 15295), (1330, 14881), (1610, 12293), (2185, 9058), (3059, 6470), (3235, 6118), (4370, 4529)]