30945680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20359}}^1$

素因数の和:20391

約数の個数: 40

約数和(自身を含む): 75739200

約数和(自身を除く): 44793520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20359, 40718, 81436, 101795, 162872, 203590, 325744, 386821, 407180, 773642, 814360, 1547284, 1628720, 1934105, 3094568, 3868210, 6189136, 7736420, 15472840, 30945680]

約数ペア:

[(1, 30945680), (2, 15472840), (4, 7736420), (5, 6189136), (8, 3868210), (10, 3094568), (16, 1934105), (19, 1628720), (20, 1547284), (38, 814360), (40, 773642), (76, 407180), (80, 386821), (95, 325744), (152, 203590), (190, 162872), (304, 101795), (380, 81436), (760, 40718), (1520, 20359)]