1990291230

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{387971}}^1$

素因数の和:388006

約数の個数: 64

約数和(自身を含む): 5586796800

約数和(自身を除く): 3596505570

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, 5130, 387971, 775942, 1163913, 1939855, 2327826, 3491739, 3879710, 5819565, 6983478, 7371449, 10475217, 11639130, 14742898, 17458695, 20950434, 22114347, 34917390, 36857245, 44228694, 52376085, 66343041, 73714490, 104752170, 110571735, 132686082, 199029123, 221143470, 331715205, 398058246, 663430410, 995145615, 1990291230]

約数ペア:

[(1, 1990291230), (2, 995145615), (3, 663430410), (5, 398058246), (6, 331715205), (9, 221143470), (10, 199029123), (15, 132686082), (18, 110571735), (19, 104752170), (27, 73714490), (30, 66343041), (38, 52376085), (45, 44228694), (54, 36857245), (57, 34917390), (90, 22114347), (95, 20950434), (114, 17458695), (135, 14742898), (171, 11639130), (190, 10475217), (270, 7371449), (285, 6983478), (342, 5819565), (513, 3879710), (570, 3491739), (855, 2327826), (1026, 1939855), (1710, 1163913), (2565, 775942), (5130, 387971)]