21423120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3881}}^1$

素因数の和:3920

約数の個数: 80

約数和(自身を含む): 69316992

約数和(自身を除く): 47893872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3881, 5520, 7762, 11643, 15524, 19405, 23286, 31048, 38810, 46572, 58215, 62096, 77620, 89263, 93144, 116430, 155240, 178526, 186288, 232860, 267789, 310480, 357052, 446315, 465720, 535578, 714104, 892630, 931440, 1071156, 1338945, 1428208, 1785260, 2142312, 2677890, 3570520, 4284624, 5355780, 7141040, 10711560, 21423120]

約数ペア:

[(1, 21423120), (2, 10711560), (3, 7141040), (4, 5355780), (5, 4284624), (6, 3570520), (8, 2677890), (10, 2142312), (12, 1785260), (15, 1428208), (16, 1338945), (20, 1071156), (23, 931440), (24, 892630), (30, 714104), (40, 535578), (46, 465720), (48, 446315), (60, 357052), (69, 310480), (80, 267789), (92, 232860), (115, 186288), (120, 178526), (138, 155240), (184, 116430), (230, 93144), (240, 89263), (276, 77620), (345, 62096), (368, 58215), (460, 46572), (552, 38810), (690, 31048), (920, 23286), (1104, 19405), (1380, 15524), (1840, 11643), (2760, 7762), (3881, 5520)]