290320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:223

約数の個数: 40

約数和(自身を含む): 714240

約数和(自身を除く): 423920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 191, 304, 380, 382, 760, 764, 955, 1520, 1528, 1910, 3056, 3629, 3820, 7258, 7640, 14516, 15280, 18145, 29032, 36290, 58064, 72580, 145160, 290320]

約数ペア:

[(1, 290320), (2, 145160), (4, 72580), (5, 58064), (8, 36290), (10, 29032), (16, 18145), (19, 15280), (20, 14516), (38, 7640), (40, 7258), (76, 3820), (80, 3629), (95, 3056), (152, 1910), (190, 1528), (191, 1520), (304, 955), (380, 764), (382, 760)]