168816520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{222127}}^1$

素因数の和:222157

約数の個数: 32

約数和(自身を含む): 399830400

約数和(自身を除く): 231013880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 222127, 444254, 888508, 1110635, 1777016, 2221270, 4220413, 4442540, 8440826, 8885080, 16881652, 21102065, 33763304, 42204130, 84408260, 168816520]

約数ペア:

[(1, 168816520), (2, 84408260), (4, 42204130), (5, 33763304), (8, 21102065), (10, 16881652), (19, 8885080), (20, 8440826), (38, 4442540), (40, 4220413), (76, 2221270), (95, 1777016), (152, 1110635), (190, 888508), (380, 444254), (760, 222127)]