18739890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 56851200

約数和(自身を除く): 38111310

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 27, 30, 38, 39, 45, 54, 57, 65, 78, 90, 95, 114, 117, 130, 135, 171, 190, 195, 234, 247, 270, 281, 285, 342, 351, 390, 494, 513, 562, 570, 585, 702, 741, 843, 855, 1026, 1170, 1235, 1405, 1482, 1686, 1710, 1755, 2223, 2470, 2529, 2565, 2810, 3510, 3653, 3705, 4215, 4446, 5058, 5130, 5339, 6669, 7306, 7410, 7587, 8430, 10678, 10959, 11115, 12645, 13338, 15174, 16017, 18265, 21918, 22230, 25290, 26695, 32034, 32877, 33345, 36530, 37935, 48051, 53390, 54795, 65754, 66690, 69407, 75870, 80085, 96102, 98631, 109590, 138814, 144153, 160170, 164385, 197262, 208221, 240255, 288306, 328770, 347035, 416442, 480510, 493155, 624663, 694070, 720765, 986310, 1041105, 1249326, 1441530, 1873989, 2082210, 3123315, 3747978, 6246630, 9369945, 18739890]

約数ペア:

[(1, 18739890), (2, 9369945), (3, 6246630), (5, 3747978), (6, 3123315), (9, 2082210), (10, 1873989), (13, 1441530), (15, 1249326), (18, 1041105), (19, 986310), (26, 720765), (27, 694070), (30, 624663), (38, 493155), (39, 480510), (45, 416442), (54, 347035), (57, 328770), (65, 288306), (78, 240255), (90, 208221), (95, 197262), (114, 164385), (117, 160170), (130, 144153), (135, 138814), (171, 109590), (190, 98631), (195, 96102), (234, 80085), (247, 75870), (270, 69407), (281, 66690), (285, 65754), (342, 54795), (351, 53390), (390, 48051), (494, 37935), (513, 36530), (562, 33345), (570, 32877), (585, 32034), (702, 26695), (741, 25290), (843, 22230), (855, 21918), (1026, 18265), (1170, 16017), (1235, 15174), (1405, 13338), (1482, 12645), (1686, 11115), (1710, 10959), (1755, 10678), (2223, 8430), (2470, 7587), (2529, 7410), (2565, 7306), (2810, 6669), (3510, 5339), (3653, 5130), (3705, 5058), (4215, 4446)]