90012880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59219}}^1$

素因数の和:59251

約数の個数: 40

約数和(自身を含む): 220298400

約数和(自身を除く): 130285520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 59219, 118438, 236876, 296095, 473752, 592190, 947504, 1125161, 1184380, 2250322, 2368760, 4500644, 4737520, 5625805, 9001288, 11251610, 18002576, 22503220, 45006440, 90012880]

約数ペア:

[(1, 90012880), (2, 45006440), (4, 22503220), (5, 18002576), (8, 11251610), (10, 9001288), (16, 5625805), (19, 4737520), (20, 4500644), (38, 2368760), (40, 2250322), (76, 1184380), (80, 1125161), (95, 947504), (152, 592190), (190, 473752), (304, 296095), (380, 236876), (760, 118438), (1520, 59219)]