20385360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1273

約数の個数: 120

約数和(自身を含む): 71495424

約数和(自身を除く): 51110064

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1231, 1380, 1656, 1840, 2070, 2462, 2760, 3312, 3693, 4140, 4924, 5520, 6155, 7386, 8280, 9848, 11079, 12310, 14772, 16560, 18465, 19696, 22158, 24620, 28313, 29544, 36930, 44316, 49240, 55395, 56626, 59088, 73860, 84939, 88632, 98480, 110790, 113252, 141565, 147720, 169878, 177264, 221580, 226504, 254817, 283130, 295440, 339756, 424695, 443160, 453008, 509634, 566260, 679512, 849390, 886320, 1019268, 1132520, 1274085, 1359024, 1698780, 2038536, 2265040, 2548170, 3397560, 4077072, 5096340, 6795120, 10192680, 20385360]

約数ペア:

[(1, 20385360), (2, 10192680), (3, 6795120), (4, 5096340), (5, 4077072), (6, 3397560), (8, 2548170), (9, 2265040), (10, 2038536), (12, 1698780), (15, 1359024), (16, 1274085), (18, 1132520), (20, 1019268), (23, 886320), (24, 849390), (30, 679512), (36, 566260), (40, 509634), (45, 453008), (46, 443160), (48, 424695), (60, 339756), (69, 295440), (72, 283130), (80, 254817), (90, 226504), (92, 221580), (115, 177264), (120, 169878), (138, 147720), (144, 141565), (180, 113252), (184, 110790), (207, 98480), (230, 88632), (240, 84939), (276, 73860), (345, 59088), (360, 56626), (368, 55395), (414, 49240), (460, 44316), (552, 36930), (690, 29544), (720, 28313), (828, 24620), (920, 22158), (1035, 19696), (1104, 18465), (1231, 16560), (1380, 14772), (1656, 12310), (1840, 11079), (2070, 9848), (2462, 8280), (2760, 7386), (3312, 6155), (3693, 5520), (4140, 4924)]