18295120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 45389952

約数和(自身を除く): 27094832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 163, 184, 230, 244, 305, 326, 368, 460, 488, 610, 652, 815, 920, 976, 1220, 1304, 1403, 1630, 1840, 2440, 2608, 2806, 3260, 3749, 4880, 5612, 6520, 7015, 7498, 9943, 11224, 13040, 14030, 14996, 18745, 19886, 22448, 28060, 29992, 37490, 39772, 49715, 56120, 59984, 74980, 79544, 99430, 112240, 149960, 159088, 198860, 228689, 299920, 397720, 457378, 795440, 914756, 1143445, 1829512, 2286890, 3659024, 4573780, 9147560, 18295120]

約数ペア:

[(1, 18295120), (2, 9147560), (4, 4573780), (5, 3659024), (8, 2286890), (10, 1829512), (16, 1143445), (20, 914756), (23, 795440), (40, 457378), (46, 397720), (61, 299920), (80, 228689), (92, 198860), (115, 159088), (122, 149960), (163, 112240), (184, 99430), (230, 79544), (244, 74980), (305, 59984), (326, 56120), (368, 49715), (460, 39772), (488, 37490), (610, 29992), (652, 28060), (815, 22448), (920, 19886), (976, 18745), (1220, 14996), (1304, 14030), (1403, 13040), (1630, 11224), (1840, 9943), (2440, 7498), (2608, 7015), (2806, 6520), (3260, 5612), (3749, 4880)]