18807840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:411

約数の個数: 144

約数和(自身を含む): 66103128

約数和(自身を除く): 47295288

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 96, 111, 120, 144, 148, 160, 180, 185, 222, 240, 288, 296, 333, 353, 360, 370, 444, 480, 555, 592, 666, 706, 720, 740, 888, 1059, 1110, 1184, 1332, 1412, 1440, 1480, 1665, 1765, 1776, 2118, 2220, 2664, 2824, 2960, 3177, 3330, 3530, 3552, 4236, 4440, 5295, 5328, 5648, 5920, 6354, 6660, 7060, 8472, 8880, 10590, 10656, 11296, 12708, 13061, 13320, 14120, 15885, 16944, 17760, 21180, 25416, 26122, 26640, 28240, 31770, 33888, 39183, 42360, 50832, 52244, 53280, 56480, 63540, 65305, 78366, 84720, 101664, 104488, 117549, 127080, 130610, 156732, 169440, 195915, 208976, 235098, 254160, 261220, 313464, 391830, 417952, 470196, 508320, 522440, 587745, 626928, 783660, 940392, 1044880, 1175490, 1253856, 1567320, 1880784, 2089760, 2350980, 3134640, 3761568, 4701960, 6269280, 9403920, 18807840]

約数ペア:

[(1, 18807840), (2, 9403920), (3, 6269280), (4, 4701960), (5, 3761568), (6, 3134640), (8, 2350980), (9, 2089760), (10, 1880784), (12, 1567320), (15, 1253856), (16, 1175490), (18, 1044880), (20, 940392), (24, 783660), (30, 626928), (32, 587745), (36, 522440), (37, 508320), (40, 470196), (45, 417952), (48, 391830), (60, 313464), (72, 261220), (74, 254160), (80, 235098), (90, 208976), (96, 195915), (111, 169440), (120, 156732), (144, 130610), (148, 127080), (160, 117549), (180, 104488), (185, 101664), (222, 84720), (240, 78366), (288, 65305), (296, 63540), (333, 56480), (353, 53280), (360, 52244), (370, 50832), (444, 42360), (480, 39183), (555, 33888), (592, 31770), (666, 28240), (706, 26640), (720, 26122), (740, 25416), (888, 21180), (1059, 17760), (1110, 16944), (1184, 15885), (1332, 14120), (1412, 13320), (1440, 13061), (1480, 12708), (1665, 11296), (1765, 10656), (1776, 10590), (2118, 8880), (2220, 8472), (2664, 7060), (2824, 6660), (2960, 6354), (3177, 5920), (3330, 5648), (3530, 5328), (3552, 5295), (4236, 4440)]