157789490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 303260760

約数和(自身を除く): 145471270

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 361, 401, 545, 722, 802, 1090, 1805, 2005, 2071, 3610, 4010, 4142, 7619, 10355, 15238, 20710, 38095, 39349, 43709, 76190, 78698, 87418, 144761, 196745, 218545, 289522, 393490, 437090, 723805, 830471, 1447610, 1660942, 4152355, 8304710, 15778949, 31557898, 78894745, 157789490]

約数ペア:

[(1, 157789490), (2, 78894745), (5, 31557898), (10, 15778949), (19, 8304710), (38, 4152355), (95, 1660942), (109, 1447610), (190, 830471), (218, 723805), (361, 437090), (401, 393490), (545, 289522), (722, 218545), (802, 196745), (1090, 144761), (1805, 87418), (2005, 78698), (2071, 76190), (3610, 43709), (4010, 39349), (4142, 38095), (7619, 20710), (10355, 15238)]