20359900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 48996864

約数和(自身を除く): 28636964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 83, 100, 110, 166, 220, 223, 275, 332, 415, 446, 550, 830, 892, 913, 1100, 1115, 1660, 1826, 2075, 2230, 2453, 3652, 4150, 4460, 4565, 4906, 5575, 8300, 9130, 9812, 11150, 12265, 18260, 18509, 22300, 22825, 24530, 37018, 45650, 49060, 61325, 74036, 91300, 92545, 122650, 185090, 203599, 245300, 370180, 407198, 462725, 814396, 925450, 1017995, 1850900, 2035990, 4071980, 5089975, 10179950, 20359900]

約数ペア:

[(1, 20359900), (2, 10179950), (4, 5089975), (5, 4071980), (10, 2035990), (11, 1850900), (20, 1017995), (22, 925450), (25, 814396), (44, 462725), (50, 407198), (55, 370180), (83, 245300), (100, 203599), (110, 185090), (166, 122650), (220, 92545), (223, 91300), (275, 74036), (332, 61325), (415, 49060), (446, 45650), (550, 37018), (830, 24530), (892, 22825), (913, 22300), (1100, 18509), (1115, 18260), (1660, 12265), (1826, 11150), (2075, 9812), (2230, 9130), (2453, 8300), (3652, 5575), (4150, 4906), (4460, 4565)]